Ask Octavia - Probably one of the longest-running of the blogs listed here (dating from the start of ask pony blogs); focuses on fan-favorite music pony Octavia. Loosely based on The Vinyl Scratch Tapes, featuring frequent appearances by DJ P0n-3, Tavi's bandmates, and Pinkie (who is her cousin here). Now up and running gloriously once again after a very long hiatus.
Ask Pinkamina Diane Pie - Based on the infamous fanfic Cupcakes, this blog pretty much started the whole Grimdark Pony blog subset, which eventually grew to encompass most of the show's cast. Although it was closed down a while ago, it has been resurrected under the same name as a partial archive. NSFW.
Ask Lil' Miss Rarity – Follows the exploits of a Pinkamina-obsessed Rarity as she quickly discovers her love of BDSM and tries to share her new hobby with her friends, all while trying to figure out what's trying to murder her. Probably the most twisted of the Ask-A-Pony blogs (and that's saying something!). In late 2012, artist Lil-Miss-Jay was banned from tumblr due to complaints. After trying (and failing) to get tumblr to reinstate him, he began reuploading the LMR comics onto his own website in January 2013. He also announced that he would be continuing the comic from where it left off. Check it out on your own time. He also has a mod-blog that is ridiculously NSFW.
Ask Sadistic Rarity - A blog in a similar vein to "Lil' Miss Rarity" (to the point that the two artists have collaborated on occasion), but a bit less nauseating. Went on hiatus in June 2012 due to artist burnout but still makes non-story updates on occasion. Has a spinoff/mod blog that is extremely NSFW, as well as two spinoffs—"Lesboloo" and "Racist Applebloom"—that are officially dead as of July 2012.
Ask Lesboloo Under new management with permission from the original artist, it is noticeably tamer than it was before, but nevertheless very adorable.
Ask The Cutie Mark Crusaders – A regularly-updated Ask blog by JanAnimations, the animator of the "Picture Perfect Pony" video. It follows the exploits of the CMC as they try (and fail) to get their cutie marks and generally act adorable. Took a detour for a few months to join the Vocational Death Cruise, but eventually got back to answering people's questions. Like his music video (which this blog predates by several months), Jan's art here is so polished it might as well be stills from the actual show.
Ask Human Luna: A humanized ponies blog, centered around Luna. It's one of the oldest Ask-a-Pony blogs out there. Features some lovely art by the very prolific Brony artist 7Nights, and has an overarching plot about the origins of Nightmare Moon, with Discord (of all people) trying to save Luna from turning evil again. Became SFW-ish (in the 7nights sense of the word) about midway through. It seems to be set in something of an "alternate continuity" regarding the events of the series (the differences are minimal however). Updates became sporadic beginning in late 2012 due to 7nights's university studies slowly taking over, as well as a desire on his part to improve his art.
Ask the Pie Sisters - Focuses on Pinkie's sisters Blinkie & Inkie, though Pinkie herself shows up quite a bit. Here Pinkie's sisters still work on their parents' rock farm and are quite friendly. Comes up with some fascinating, yet believable, answers to the functions of a rock farm.
Ask Twilight Sparkle Anything - Though there are many Twilight blogs worth reading, this stands a cut above the rest with its excellent pencil-drawn artwork and some deeply emotional responses (i.e. the question of what will happen to Spike when he grows up).
Ask Smarty Belle - Drawn by Megasweet (one of the major artists in the pony fan community, and originator of the "Ponyshrug" meme), this blog depicts Sweetie Belle as a young ditz with delusions of brilliance. It's quite Safe-for-Work, unlike literally everything else Megasweet does. Almost never updates, though.
Currently Recording / Ask DJ-P0N3 - contains frequent trade-offs with Ask Octavia, expanding on the relationship of the two characters as well as DJ-P0N-3/Vinyl Scratch's personality and back story. Run by Brony celebrity artist Dreatos.
Ask Discorded Whooves - As the title says, it features Dr. Whooves (a version of 12th Doctor) as a bitter coward and shameless womanizer after his discording. Both an interesting character study and a gag-a-strip blog. One of few with an overarching plot, and excellent art to boot.
Now with a hefty added dose of pony Jack Harkness.
Ask Plushies – A blog featuring plushie versions of Fluttershy, Derpy, Dinky, and Applejack, as well as chubbies of Lyra and Bon-Bon and occasional guest spots from plushies of Kiki and Bun-Bun. A friendly take on "ponies in the real world" (Lyra, Bon-Bon, and Dinky all came in the mail), with frequent lampshading on their plush natures.
Recently, following the creator acquiring chubbies of the Mane Six and Derpy, the Chubbies have acquired their own Tumblr (containing polymer clay sculptures of said chubbies).
Moonstuck – A Homestuck parody featuring Princess Woona (filly Luna) going on an epic adventure on the moon. Made by another very famous Brony artist, Egophiliac. She's the one you have to thank for the "ponies-in-socks" meme. Now has its own page! The narrative eventuall grew into a Prequel dealing how Luna found the elements of harmony on the Moon and defeated Discord alongside Celestia.
Bitter Sweets – What happens when Twist gets sick of all the abuse and stops being a nice little filly? Grimdark.
Ask Braveshy - An Ask blog involving a newer, tougher Fluttershy. The visuals are striking and there is a natural sense of story progression.
moon - Originally titled "Ask Loony Luna", this blog straddles the Grimdark line (it's more Psychological Horror than anything else) by chronicling the adventures of a Princess Luna who's slowly gone insane from being stuck on the moon for a millennium, her only companions being a 1989-vintage Nintendo Game Boy and various objects she finds. Updates have become infrequent enough to be nonexistent.
Ask Meanie Belle - An ask blog that parodies the common Grimdark takes on characters in the show, by presenting Sweetie Belle trying to be mean, but isn't very good at it. Done by Femmegasm artist, Robbie Allen. Also noteworthy is that unlike Femmegasm, Meanie is completely child friendly, NO MATTER WHAT SHE GETS ASKED. Leading some creative and hilarious answers (i.e. when asked about BDSM, Meanie Belle thought the questioner was referring to a cartoon show called Beautiful Darling Super Mare).
Ask Stalkerloo - A popular ask blog about Scootaloo being a spy/stalker. Manages to be adorable despite the concept. Worth noting as having some of the best and most beautiful artwork seen in an ask a pony blog.
Dan VsFiM – Self-explanatory. It's not run by any of the show's artists, but it sure looks like it! Now with videos!
Ask Fluffle Puff: A spin-off by the same creator, focusing on the unintelligible, extremely fluffy Original Character.
Ask Futashy – Another blog created by Megasweet (see the "Smarty Belle" entry above). Features a Futaversion of Fluttershy and human versions of other main characters. Despite being heavily NSFW and loaded with fanservice, it actually manages to be quite adorable.
Dr. Adorable's Ask-Along Blog Mixing MLP and Dr. Horrible this blog feature Fluttershy as the eponymous Dr Adorable, following her descent into evil as a result of her childhood experiences. Every bit as adorable (she even has a Ph.D.) as the name suggest.
Ask Terry – derived from a rather absurd parody of the (often very badly made) official European MLP:FIM comics. In this world, all the characters are stock art from the toyline (except Sweetie Belle, who is a photo of a Sweetie Belle brushable toy). Rainbow Dash is racist, Twilight is a princess, and Applejack is The Unfavorite, while Terry (actually Scootaloo) has to foil the evil plans of King Zebra (actually Zecora in Spike's "Smooth Criminal" hat). Stylistic Suck abounds. As the author puts it, "All the ponies are horrible. You have been warned."
Ask Jappleack – A blog based around the .MOV series's Applejack character, by that series' creator, Max Gilardi. It's in the same continuity as the .MOV series, to the point that it serves as the liner notes. It actually predates APPLE.MOV by a month or so. Earlier on, the blog involved AJ talking smack to the other Ask Blogs and could get somewhat vulgar at times, but the events of DRESS.MOV caused it to veer hard into Cerebus territory and transformed from a traditional Ask blog into an infrequently-updated comic strip. Gilardi uploaded the final "Jappleack" comic on 1 March, 2013, a week and a half after SWAG.MOV wrapped up the .MOV series.
Ask the Flower Trio: Focuses on Daisy, Lily, and Roseluck. Another blog with a cute artstyle, it also goes out of its way to flesh out the personalities of the Flower Trio beyond "get scared of mundane things". Rose has also grown out her mane.
Noir Dash An AU blog focusing on humanized versions of the cast in a Film Noir setting. The story is interactive, so think Moonstuck if it took itself more seriously. Features excellent, stylized art, good writing, and Rainbow Dash as a Private Detective. What more could you want?
Slice Of Life: Four-Cakes-and-a-Pie blog dealing with the gag-a-day hilarious lives of the Cakes and Pinkie Pie. It's Time Skipped, so that Pound and Pumpkin are now a bit older and the Cutie Mark Crusaders are now teenagers. Under the brilliant direction of the one and only egophilliac, the art style and humor are amazing. Strictly SFW!
Pregunta (Ask) Scootaloo: One in a series of Spanish-language Ask Pony blogs, this one featuring Scootaloo as the main character. You may need a translator at times to understand, but there's still a lot of universal humor. This particular blog was once humorously confused with another formerly called Ask Pregnant Scootaloo (now Motherly Scootaloo).
Ask Vinyl & Octavia: Another blog following the adventures of Vinyl & Octavia as they're living together. The most noteworthy qualities are the speed which each panel is released and the various story arcs which are developed out through the day to day activities of two.
Hate Mail for Twitht: Twist, Ponyville's most despised filly, receives threats, hatemail and other reminders of what a vile existence she leads. Twist takes it in good stride, though, probably because she deserves at least some of the hate.
Ask Gamer Luna: A dedicated Gamer Luna blog by Swedish brony Sallymon. It has some amazing art and a ponyload of followers, despite being relatively recent. Has been home to some notable videogamingclashes over the past few weeks.
Ask Flutterstalker: A blog set in a Grimdark world where Fluttershy has become an outcast due to stalking her friends and committing murder, and her closest companion is an Eldritch Abomination. Usually drawn with a pallet of pinks and black, this blog tends to have some touching moments and good humour despite its setting.
Ask Bubblini DaVinci Berry: It follows the life of Pinkamena Diane Pie, humanized and genderswapped, as Bubblini Da Vinci Berry (based on Trotsworth's designs for the mane 6, as males), and his struggle to keep a sane mind. It also focuses around Dusk Shine (the male counterpart of Twilight Sparkle), whom Bubblini Da Vinci Berry has kidnapped, and uses to help him, whenever the another person's number comes up. But there is an ulterior motive to why Bubble Berry needs Dusk. It is based on the infamous story Cupcakes, and some of it is NSFW.
This is due to the writer taking the whole "answering questions" thing VERY seriously; s/he has admitted that if it had been a "Draw" blog, there would not be very many updates
. It's not done by Greg (a.k.a FimFlamFilosophy), the creator of Mentally Advanced, but it sure feels like it. The blog has earned his acknowledgement (and the outright blessing of Rainbow Dash Presents artist Petirep). Has probably the most extreme Archive Panic of any Ask blog on this page; started in late 2011, by New Year's 2013 the blog had grown to over 600 pages, and it often gets updated multiple times a day.
Ask Acetic Rarity - A freak incident turns Rarity into a magical powerhouse, at the cost of her mental stability. With her newfound power, she is going to show that a lady can be epic too. Well-drawn and entertaining. Shares quite a few traits with "Ask Hot-Blooded Pinkie", at least as far as the ham goes.
Ask Lying Applejack - Applejack certainly doesn't answer any questions, what gave you that idea? But if she did, they'd certainly be honest and correct.
Ask The Wonderfully Wise Wizard - Post-duel Trixie educates her audience on all matters of Equestrian magic. And looks spiffy in her new derby while doing it.
Ask Twixie Genies - Trixie happens upon the bottle of Jackass Genie Twilight, who screws around with Trixie's wishes; particularly her final wish ("I wish to be powerful like you"), which gets Trixie turned into a genie herself. The two bottle genies only accept users' requests, or "wishes", as long as they type the phrase "I wish", the sole exception is trying to give Trixie wheels. Practically runs on Twixie shipping (whether Trixie likes it or not), and uses artwork remarkably similar to the show.
Ask Cadance – One of the leading Cadance Tumblrs currently. Originally it played Cadance's character as close to her canon portrayal as possible, but Cadance quickly deviated from her canon portrayal, becoming an eccentric, fun-loving Princess with slight Cloudcuckoolander tendencies. Notable for sharing its continuity with The Greatest Gift.
Ask Corrupted Twilight Sparkle-A grimdark blog where Twilight is corrupted by King Sombra's dark magic and takes over the Crystal Empire, then Equestria.
Ask the Fallen Hero A story driven blog about, Twilight and her friends 5 years after Celestia resigning. Luna took control but after a incident known as "THE EVENT" she appointed a corrupt faction called the council. There is a side story with a prophecy for a man called the Son of time, but its mostly about Twilight and allies trying to take back there country.
Ask Firestarter Spitfire, a semi-grimdark blog where Spitfire is a jade, alcoholic, foul mouthedDeadpan Snarker who has severe psychological issues due to the death of her best friend Hurricane. Notable for its lack of color aside from a yellow backdrop. In July 2012, Spitfire was finally able to move on from Hurricane's death, which brought color to the blog as well as seemingly healing her trauma. Since then, the blog has become considerably more lighthearted as Spitfire is the only sane mare in a fucked up world.
Ask King Sombra: Following a loose storyline of Sombra (represented here as a flamboyant pretty boy who enslaved the Crystal Ponies because he was jealous that they had better hair than him) after he was defeated by Shining Armor and Cadance, Sombra languishes in a narcissistic dreamworld accompanied by a mare named Coffee Talk, whose soul was trapped along with Sombra's inside his falling horn. Most of the events of the first half take place while the horn is still falling.
Ask Whirly and the Night Guards - A blog featuring three very popular pegasus OC's: Whirly Willow, a Canterlot fashion designer, and Adam "Wrath" and West "Vengeance", two members of Equestria's Night Guard. At times both funny and dramatic, it tries to explain some of the intricacies of the Equestrian military structure. It also has a sort developing backstory plot. It features top-notch artwork by genius brony artist Puzzle-Of-Life / Kayla the Orator (seriously, just look at that gallery).
Ask Aquilinus: Follows the life of Aquilinus, Chief officer of Celestia's personal guard. Similar to Whirly, it is sometimes hilarious, sometimes dramatic; one day focusing on Aquilinus' exploits as The Casanova, and another giving a detailed history of the clan-oriented military, and how his family fits in.
Ask the Night Guards/Friendship is Top Secret: A blog which features two different night guards (though with similar names: Adamant and Westwood). Unlike the above, these two are Desk Jockeys, in charge the Royal Library. They oversee classified and declassified documents alike, ranging from the mundane to Tomes of Eldritch Lore. Functions as an extended Grand Unifying Guess, attempting to unite previous generations of MLP and depicting Equestria as a world built atop the ruins of human civilization.
Ask Princess Ataxia - A bizarre Reality Warper Alicorn with an interdimensional mane. Answers questions along with her loyal aid Screwball (who is the least screwy of the two)
Ask Surprise - Another Wonderbolts OC Stand In, but more importantly she's the G1 pony Pinkie is based on! Imagine Pinkie Pie, but her cartoony wackiness turned Up to Eleven (even by the standards of the show itself). That's Surprise.
Ask Velvet - an OC pony that runs a lingerie store. Mostly clean, well drawn, it has all the hijinks one would expect from a pony running a lingerie store, and even some drama. Definitely one of the better OC pony blogs out there.
Ask Ice Pack - Despite being an ask blog about a male Zebra prostitute, this blog offers a unique experience while keeping the NSFW only implied, and hilarious 100%.
Ask Love Letters - An adorable pink pony whose special talent is giving handwritten notes that brighten everyone's day (Usually).
Ask The Master – A companion blog to Discord Whooves, drawn by the same artist but with a different, unidentified writer, focusing on the Doctor's fellow Time Pony and greatest rival. Considerably saucier than its counterpart, its art and story are just as impressive, and its overarching plot intersects with at least 2 other blogs.
Ask Ipsywitch - Generally pretty innocent (If not a little dark) blog about an OC pony named Ipsywitch that recently moved to a decaying (apparently due to all the grimdark versions of the mane six) Ponyville to practice black magic. She's normally innocent and friendly, but can be rather scary and mischievous when she wants to be.
Ask Klodette - A voyeur pony who travels Equestria taking naughty pictures of everypony, including the Mane 6. Very NSFW, but adorable in a weird way.
Ask King Metamorphosis: An ask blog by voice actor Victor Frost of Gentlecolt Collaborations (the guy who blew you away with this), where the character responds by audio. This one features the husband of Queen Chrysalis, who is hopping on the "Ask" bandwagon in an effort to gain the favor of the peoples. His answers are sometimes short, sometimes long, but always with the appropriate mood music. As could be expected, despite starting recently he already has to deal with fangirls.
On that note, there is also Ask Wild Card, an audio ask blog focusing on the titular OC and his gang of bandits the Crimson Saddles. Very well acted and written, and blends Equestria and the Wild West quite nicely. Bonus: the mod also runs another audio ask blog, Shining Armor Reports.
Ask Stitches: A counter-Grimdark blog about a doll-making OC pony who went though a terrible accident which left her deformed. Despite the ordeal, she still manages to retain her bright and cheerful attitude (most of the time) in her new form.
The New Crufavers: A sequel series of sorts, about the team's quest to find new ways to 'fave'.
Ask Movie Slate: She is an OC that owns Ponyville's only Cinema. She needs more movies in it because the only one she has, the hurricane briefing movie was burnt by Spike. She gets movie suggestions from the Tumblr blogosphere and reviews them. One special thing of note: her mane and tail are movie film, and as you progress through the blog, you can see previous entrys of the blog.
Ask Medusa: The adventures of Her Royal Highness Princess Medusa of Echidna, and the odd inhabitants of her kingdom, such as her new best friend Arachne. Has been around since July 2012.
Ask Dethklop: My Little Pony meetsMetalocalypse. Dethklop is the most popular and brutal death metal band in all of Equestria and the "planet's greatest cultural force." Consisting of Neighthan Explosion, Pickles the Drummer, Murderflank, Skwisgaar Saddlegeld, and Toki Warhoof, they were forced by their manager Clopfdensen into opening an Ask blog to promote good PR. Also, Murderflank might be Twist's father.
There was a crossover planned between Ask Colgate and Ask Berry Punch, where the two title characters were to get married. Unfortunately it had to be cancelled due to the artists' personal lives taking unexpected turns. It looks like the two are still getting married, but off camera.
At the time he got banned from tumblr, Lil-Miss-Jay was in the beginning stages of rebooting "Ask Lil' Miss Rarity", having her work in a boutique. After the ban, he decided he didn't like the new direction and opted to just continue his original storyline.
Miggle1337 has has worn Kamen Rider Ichigo and Beet Buster costumes on occasion and even humored the idea of a Three-Man (or Three-Zebra...) sentai parody in response to an ask.
The Ace Wings and Blitzkrieg Sentai Ace Brigade of AskTheAceWngs (formerly AskMat2 ) are a Sentai parody group, specifically inspired by J.A.K.Q. Dengekitai, with Dengekitai also meaning "Blitzkrieg Squadron", which actually is the only reason the Ace Brigade are known as a Blitzkrieg Sentai. The inspiration for the Ace Brigade is also in part from Kamen Rider Blade.
Ponified Strawhats previously Ask Ponfied Luffy, currently undergoing a redesign from the former version of the blog. It's based on One Piece. Before the reset, it once crossed over with the most obvious blog to do so with, Pirate Dash.
Pickles the Drummer from Dethklop challenged Drunk Celestia to a drinking contest. The loser? The bar.
All Just a Dream: Most of the first part of Ask King Sombra was his subconscious dreaming after he was blown to bits by the Crystal Heart, trapping his mind in his horn in the process. The only thing that's real is Coffee Talk, who he absorbed in his shadow form before it happened.
Anti-Hero: Dead Rainbow Dash, a Rainbow Dash raised as a vengeful zombie after the events of Cupcakes. She is very hard to bond with due to her obsession with revenge against Pinkamena, but those she considers friends, she's very protective off.
Apocalypse How: Hot-Blooded Pinkie accidentally destroys Equestria in a very misguided attempt to cheer up Cranky Doodle with a game of "Pin the Meteor on the Donkey". Fortunately she has a plan to fix everything, with the aid of a Delorean she borrowed from Science Woona.
Arson, Murder, and Jaywalking: In one bit of Lil Miss Rarity when asked if she's okay: "I murdered my cat, I grew obsessed with a murderer, I did horrendously vulgar things on a camera that apparently doesn't exist, I did unladylike things with Rainbow Dash, I developed a fetish for pain and bloodletting, I physically wounded my little sister, I threw a sewing machine at Twilight, I put a knife in my posterior, and worst of all, I KISSED BLUEBLOOD."
Art Evolution: Some of the longer lasting blogs have noticeably improved in the art department. Compare this early post from Ask Octavia to this post 6 months later.
Artifact Title: Once in a while, some of these blogs go into little hiatuses from responding to questions in favor of explaining their plot further.
Battle in the Center of the Mind: JitterbugJive/BaldDumboRat states that Ask Zerum (A NSFW Discorded Whooves spinoff featuring Dissy as an ultra-submissive slave to Discord) is this to the main Discorded Whooves, representing how the real Doctor's mind is a prisoner of Discord's magic.
"Ask King Sombra" has this ultimately happen between King Sombra (who is overall nicer than in canon due to some Character Development) and Coffee Talk and Sombra's Enemy Within.
Blood Magic: Blood Mage Sweetie Belle practices it. However, Dark Is Not Evil and she only uses her own blood for her magic (she won't even use animal blood because she couldn't bare to kill an innocent animal). She even used it to save Rarity's life which is how she learned it. It's described as being more powerful than normal magic, but due to misuse long ago, it's outlawed and considered evil, so she practices in secret. Also, because she uses only her own blood, she's limited in what magic she can use and how much she can use it.
Boomerang Bigot: Played with in ask Niggertron. He frequently mocks African American stereotypes, and uses the word "nigger" a lot, but he's not particularly serious about any of it.
Brain in a Jar: Brainy Twilight. She actually did this to herself because it let her become stronger and think more clearly, and thanks to magic she can move around easily. Oh, and her body is now a cyborg named Sparks. She's willing to do this to others if asked, and the process is reversible.
Brainwashed and Crazy: Trixie in asked the fallen hero. She is being controlled by "The Fargments of Gallopfey" and now cannot remember the "Alicorn Amulet incident". It exaggerates Trixie's hate for Twilight to the point that she wants to Kill her and makes her gain traits of a sexual predator.
Break the Haughty: Japplejack, after a series of tragedies and ending up in Canon!Equestria. She ends up becoming a much better pony because of it though.
Breaking the Fourth Wall: Most Ask a Pony blogs seem to employ this by having the character explain why they decided to get a Tumblr. Some go the extra mile by having characters say they speak to off-screen cameras that follow them around.
Ask Kid Discord begins with Kid Discord literally breaking the fourth wall on accident.
The Crusaders specifically ask Pinkie Pie to teach them how to do this at will so that they can answer questions from their followers while they're crusading without having to be at a computer.
Buxom Is Better: Inverted, and the entire point behind The Plight of Busty Derpy.
The Caligula: Ask King Sombra takes this route instead of his depiction in the show. He's pretty dang nuts. In fact, most of the occurrences in the blog are simply him hallucinating after his defeat at the hooves of the mane six, which reduced him to a horn (Coffee Talk is trapped with him). Except the the ghost monster. That was actually Luna. His Enemy Within, however, is pretty much how he was depicted in the show proper.
Cerebus Syndrome: Spoofed in Firestarter Spitfire. When Lightning Dust reveals herself and explains how she's trapped Spitfire in her own psyche, the plot takes a sudden turn for Lovecraft-style Cosmic Horror. Naturally, Spitfire immediately calls her out on trying to turn the previously comedic tumblr into a Cosmic Horror story, complete with a background of the plot (in the form of a train) being crushed by an anvil.
Ask King Sombra seemed like a fairly wacky, comedy blog. Then it was revealed that it was all in King Sombra's imagination after he was blown to bits by the Crystal Heart, reducing him to a horn, and Coffee Talk (an innocent mare who'd only gone to the north to report on the Crystal Empire) is there because he absorbed her in his shadow form. And Coffee Talk may be trapped there forever.
Character Development: Miss Twilight Sparkle has become less suicidal, and may even be pulling herself back from her Despair Event Horizon. In her own universe, Pinkamena has gotten several Pet the Dog moments with her version of Twilight, and ''another'' Pinkamena has become much more mellow after starting a relationship with The Master. Perhaps most impressive, after losing her sister to Discord in Shed.Mov, Jappleack has transformed from a Jerk Ass of the highest degree to a Nice Girl and become The Hero.
Cosmic Retcon: Its recently been revealed in Ask Serious Rainbow Dash that the universe Serious Rainbow lives in is actually an alternate version of it she was reborn into by 'the big guy upstairs' after the original universe ended in a Kill 'em All.
Crapsack World: Equestria in Discorded Whooves. Besides Ponyville itself (which is described below under Wretched Hive), the battle against Discord wasn't a single incident as in the show, but a cataclysmic Great Off Screen War that's left Equestria in shambles and Celestia and Luna powerless to help their people try to rebuild due to having lost much of their power in the war.
Creator Breakdown: The Crufavers had left tumblr for a while due to Ponibooru's death.
Crossover: Happens quite a bit, some blogs will plan out little crossover stories or sometimes they'll just make shout outs to each other. And of course there's all the Doctor Whooves and traditional crossover blogs.
It has gotten to the point where it is basically a Shared Universe, which is doubly funny considering how wildly the art styles vary and how many characters have multiple blogs (which also have crossed over with one another).
The general opinion (postulated by various versions of Doctor Whooves) seems to be that the Ponyverse itself is shattered to pieces, containing multiple versions of the same characters. Suddenly, those scenes in the show where you see the same background pony more than once make a lot more sense.
A very common reason for a crossover pic is one blog starts following another one, leading that blog to make a crossover pic. Predictably, this can get a bit disturbing when Molestia is involved.
Taken to a much larger degree than usual with The Coop, which is a collection of multiple Scootaloo based blogs in a single house. It's as chaotic as you would guess.
The Dash Pad is similar, except with Rainbow Dashes and minus the reality show aspect.
Despite being a witch and the pony equivalent of a Deep One Hybrid, Ipsywitch is friendly, good-natured, and saves using her powers and companions to inflict awful fates for those who genuinely deserve them.
Dating What Daddy Hates: Subverted for Diamond Tiara in Slice of Lifehere. She passionately tells her father that she and Snails are in love and that nothing Filthy Rich says can stop them, either missing or ignoring the fact that he is fully supportive of the relationship and just wants his daughter to be home in time for dinner.
Death Is Cheap: In Question Pinkamena (A Cupcakes!Pinkie blog that is Black Comedy instead of grimdark), anyone killed by Pinkamena revives sometime later with no memory of their death.
She kills Serious Rainbow, who, thanks to being a member of the Serious Foundation, just respawns five seconds later. When asked why she's not mad, Serious Rainbow replies this is the seventieth time she's died. Her first death was really the only one Played for Drama due to it being a Killed Off for Real in her original universe, causing her to be reincarnated into another.
Loona from Loonadventure (formerly, Ask Loony Loona).
Flutterstalker's companion, Dusk, appears to be a rare benevolent example.
Appelox from the Ask Japplejack blog.
Emo Teen: Rarity comes off as one in Ask Sadistic Rarity.
Meanie Belle pretends to be this.
Grim Dark Big Macintosh tries to be this, but he's really a goofysweetheart.
Jappleack appears as one on an occasion.
Equestria-Shattering kaboom: The result of Hot-Blooded Pinkie getting carried away playing a game of "Pin the meteor on the donkey" with Cranky.
Even the Mares Want Her: Pepper Mint, AKA Twist after a run-in with some Poison Joke, is loved by everyone, fillies, colts, mares and stallions alike. VERY loved. To the point of mobbing her in the street, or trying to drag her away for age-appropriate activities. Or, in the case of Pinkie Pie, attempt to love her with an axe.
Twilight in Serious Rainbow Dash's original universe. Originally, she'd said it was their Pinkie (Green Eyes), but it turned out her memories were just messed up to the point she confused the two until Green Eyes pointed it out.
Flanderization: Played for laughs in Ask Jappleack, in which Applejack's southern heritage is pushed Up to Eleven. In short, she goes from "hard-working cowgirl" to "sibling-beating Southern Baptist Nazi."
Flat "What.": Twilight from Ask the fallen Hero dose this quite often.
Genie in a Bottle: Genie Twilight establishes this is par for course for Genies, though in Twilight's case, her bottle is basically a fancy bed instead of a prison once Spike released her shortly after she became a Genie.
Idiot Ball: In-Universe, anyone who signed up for the Vocational Death Cruise — a "cruise" with numerous mentions of death in the name, locales, and invitation, hosted by Santalestia, a Bad Santa version of Celestia who gave out lumps of foal meat instead of coal. Lampshaded by one of the Rarity blogs, which highlighted all the mentions of "death" in the invitation and declined by saying "A lady is not stupid."
Impossibly Cool Weapon: Serious Rainbow has a Desert Eagle forged from her original universe's (Long story short, she's a reincarnation of another Rainbow Dash killed in a different universe than the one the blog takes place in) Elements of Harmony.
Inferred Holocaust: Discussed in Ask Genie Twilight. Now that Twilight is a Genie, she's naturally going to outlive all her friends except for Spike and the Princesses. This implication is actually fully explored in the tumblr, and Twilight ultimately decides eternal life will be workable since she'll always have Spike, at least.
Interface Screw: Recent updates in Discorded Whooves show that Dissy's discording is becoming so unstable that its actually begun to rewrite the asks Dissy received so it looks like they're encouraging his assholish actions. In some cases, it outright destroys the asks!
Deconstructed in the "Twixie Genies" blog. There, Twilight is a genie who purposefully misinterperets Trixie's wishes until the latter wishes to be powerful "like her", which gets Trixie turned into a genie herself. After several entries worth of Twilight teasing and flirting with Trixie, a few users ask how Twilight became a genie and why she acts the way she does, which Trixie answers: Twilight had her own encounter with a Jackass Genie who tricked her into becoming a genie. When Trixie happened upon her bottle, Twilight turned her into a genie so she wouldn't have to be alone anymore. Together they started the blog so Twilight could get back in contact with her friends and family.
Acetic Rarity does a good job of it too, aspiring to be epic in all things.
Let's Get Dangerous: Sexy Spitfire is normally friendly, warm and laid back, but when the Shadowbolt who murdered her mentor attempts to kidnap Rainbow Dash, she shows off just why she's captain of the Wonderbolts.
Medium Blending: Whereas all the other characters are depicted with vectors from the show or the toyline, Sweetiebell in Ask Terry is depicted with her actual toy.
Mind Rape: Practically a trademark of The Master. Often followed by the physical variety.
Mind Screw: In Ask the Crusaders, Pinkie Pie explains how the Fourth Wall works so that the CMC can be able to break it to make answering questions easier. Eventually, Pinkie Pie reveals to them the secret that allowed her to break it so many times...
Now Jack has arrived in Ponyland as well, which seems to be keeping the Doctor's Discorded self more under control than before.
Ruby Pinch occasionally fill the role for Meanie Belle, as she's one of the few ponies Meanie Belle actually likes.
Screwball for Discord on the Ask Pony Discord blog. He's still a Jerkass to everypony else, but she's about the closest thing he has to a friend (unlike some interpretations, she's not his daughter in this version).
Coffee Talk gradually becomes this for King Sombra in "Ask King Sombra", to the point he finds her body to return her to it. Her being this is exactly why his Enemy Within (who is far closer to his canon characterization) wants to kill her.
The Multiverse: Given the massive number of character blogs, multiple versions of many characters exist. Some blogs seem to interact as though they share the same universe (such as "Ask Octavia" and "Ask Vinyl Scratch"), while others will have temporary crossovers: "Ask Twilight Sparkle Anything" has met at least two alternate versions of herself, the Vocational Death Cruise has over 100 universes interacting with each other, and most of the female characters have had some kind of interaction with Discord Whooves.
Serious Rainbow takes this to its logical extreme by having her be in an organization guarding the multiverse. In addition, both the universe she lives in and her original universe (long story short, her Pinkie Pie went crazy and killed the group (though apparently she was at least somewhat sympathetic and Rainbow's memories were screwed up and she mixed her and the real killer up) and she was reincarnated in another universe) have drastic differences from the show which are explicitly stated to be due to being an alternate universe (Rainbow refuses to join the Wonder Bolts, for example, due to her personal friendship with Spitfire and in her original universe was named Rainbow Flash). Oh, and somehow, the Elements turned Discord good.
Mysterious Employer: Prince and Celestia, from the Ask the Fallen Hero. They don't hide in the shadows, or mask there appearances (Well at least the former doesn't), but they're mysterious enough to get almost all of there agents questioning there actions and there loyalty; (Except Rainbow Dash, she's in it for the Revenge).
Official Fan Submitted Content: kenyru had "given" Loona a Game Boy to play with early in the Ask Loony Loona tumblr to which she would accept nothing else afterwards. This later became an important part of the blog's story.
OC Stand In: All the ones based on characters from the show are this really, but especially the ones based on background ponies and Wonderbolts.
Our Genies Are Different: Genies on the Ask Genie Twilight blogs work under different rules than 'traditional' Genies. For one, they're mortals that are transformed into Genies by a magic spell and are at first limited in their power (though still far exceeding even Twilight's power to the point Twilight was able to defeat Trixie when Trixie had the Alicorn Amulet), but can perform any wish they've granted on whim at any time. The Genie also sets the number of wishes a particular master can have, even giving them no limits, and can refuse a wish if they don't want to grant it and some of the limitations they have can be bypassed by a wish (such as no longer being physically connected to their container and being able to grant wishes for beings other than their master, something Spike has wished for Twilight). They also return to their bottle if exhausted or in a deep sleep to rest, something Twilight considers a perk, as the rest is far better than normal rest. Also, if not wished free (which, in context, simply means returning the pony to normal) within three days of becoming a Genie, they cannot be wished free for a thousand years, something Twilight knew and accepted.
Paper-Thin Disguise: Stalker Trixie is convinced that a sweater and a pair of glasses is enough to hide her identity. While working as Twilight's assistant "Lulamoon".
Roboshi of the Ponibooru Crufavers has a popular female version of him known as Robo-she.
Blitz Gets All the Mares is a NSFW blog based on the fanfic "On a cross and arrow" where the main universe mane six find themselves in a rule 63 universe.
This once became a bit of a bandwagon, with several blogs doing it to the point where one even had a mad scientist who claimed to have released a variant of Poison Joke known as Gender Joke, but that never really caught on, in spite of most of the genderswaps being the result of poison joke, even when it wouldn't make much sense for the poison joke to do so.
Retcon: Despite originally saying it was her Pinkie that killed her in her original universe, Serious Rainbow Dash eventually reveals it was her Twilight that did it. Said Pinkie (nicknamed Green Eyes) lampshades this by saying the original story guide said she was the villain and they're not following it anymore. Also explained inuniverse in that Rainbow Dash's memories of the event somehow confused the two and spending time with Green Eyes helped her remember what really happened.
The Coop has recently rebooted going from a gameshow style blog to more of a slice of life blog much like most other blogs of it's nature.
Running Gag: Few things are universal across these blogs, but pretty much every single one of them gets a visit from a Pony Chubby at one point or another.
Shown Their Work: Most of the blogs can be tied into a loose continuity with the show, but the creators of "Statued Discord Replies" have repeatedly gone the extra mile to make Discord true-to-form, including his occasional break into rhyme for some of the replies. For example, here he is lamenting on his situation to the rhythm of Portal's "Still Alive"; Someone even put those verses into a proper song.
Likewise, the guy behind Discord Whooves is very well-versed in Doctor Who lore, and the references can get pretty obscure.
Sibling Yin-Yang: In Ask the Pie Sisters, Pinkie is her usual crazy self, Inkie is an introvert Fluttershy Expy (lampshaded when it's noted the two are very good pen pals), and Blinkie is somewhere in the middle.
Pinkie makes frequent appearances in Ask Octavia, which plays with the "Pinkie is Octavia's sister" theory by having them be cousins instead.
Sixth Ranger: The mod of Ask The Crusaders added Babs Seed to the blog shortly after "One Bad Apple" aired, pointing out they did it because they are ask the Crusaders, which would logically include their Sixth Ranger.
The Ace Wings of AskTheAceWings and By extension, their original combined form, Ace Wing are Technically 5th rangers, but as the Ace Brigade are heavily based on J.A.K.Q. which initially had four, with Big One acting the as Sixth Ranger, they also count. Due to their orgin and similarity to the Go-On Wings whom they are based on, they both count as the Fifth ranger of the Ace Brigade
King Sombra: The front door disappeared, my slaves are gone, there's a ghost monster in the mines, and now my magic doesn't work! What next?! (Cue said ghost monster coming through the floor directly beside him)
Time Travel: Stalker Trixie has tried it a couple of times to alter her own past. The first time resulted in a Bad Future where, while she was in a position of power, Nightmare Moon won and ruled the world which she had to undo. The second time...somehow resulted in her age regressing the entire world. Even Celestia has no idea how she managed to screw the spell up that badly.
Played with when Whirly asks Statue Discord to the prom. He turns her down, but then Whirly gives give him Puppy-Dog Eyes which causes Discord to fall in love... with his own reflection in her eyes! He then asks himself our to the prom.
Wretched Hive: Ponyville in Discorded Whooves. Rainbow Dash, Pinkie Pie and Fluttershy are dead, Applejack and Rarity are batshit insane, Twilight is a broken shell of her former self due to all this, the crime rate is so high that Mayor Mare resigned in shame and parents are too afraid to let their kids go outside at any time, and now there's a seriel killer on the loose. Most of the police are incompetent, and the one officer who is competent, Warden, is a Knight Templar obsessed with pinning all the town's problems on the Doctor.
Write What You Know: Ask Zerum and Discorded Whooves are both themed around rape/abuse victims. Guess what happened to the author?
Word Of God for Ask The Fallen Hero, says that the characters and story are themed around extreme unquenchable repressed rage. The author has gone on record for having something similar to this. This could be a reason why certain characters quote lines from God of War
You're Insane!: Twilight's reaction to Japplejack's plan to eat Appelox in order to stop him from eating Equestria. But in the end she admits they have no other plan that might work so they'll have to try it.