Haiku Laconic Main
The Wiki Rule
There's a wiki for that.
There is no area of interest, no matter how narrowly defined, where a person cannot put up a wiki for it and attract at least a few editors with similar interests. Increasingly, in fact, there is a chance that someone already
put up a wiki for it. For example, here's one for
. The plants.
In the early days of the Internet, there was a similar phenomenon, the "everything has its own home page" rule. Anyone with enough HTML savvy and a powerful enough interest in one particular subject could and often would create a site dedicated to it. This was largely how the early Web was forged, in fact. All the stuff we know and love today — e-commerce, social networking — that came later. Except
porn. Porn was there from the beginning.
With the advent of
, the playing field changed. Rather than rely on a collection of sites each written by one person with questionable expertise, users could find most of the information they needed in an article written, edited, and fact-checked by an
of people with questionable expertise, but all on one easy-to-remember site. The interest in hand-crafted "fan sites" waned.
However, a number of factors kept Wikipedia from being a perfect replacement for the old system. A desire for greater detail on the topic than Wikipedia is willing to allow, for one. Schisms or differing schools of thought on the topic was another. Fan-made wikis sprang up to bring back the world of homemade sites with the
of the wiki model.
The "wiki-sphere" is becoming a vast depository of information at all levels of detail. The encyclopedic wikis are collecting a great breadth of topics at an increasingly shallow level of detail, and the topic-intensive wikis are gathering all the details.
Not all Wikis are on the major search engines, though. Corporations use wikis behind firewalls, the American CIA uses one to collate data among agents and analysts, and even publishers of dead-tree books use them to coordinate edits among authors, editors and copy editors.
Fan-made wikis are usually made on wiki farms, such as
, or else are hosted on a preexisting fansite. Recently, organisations such as
have spoken out against the commercialization that takes place on wiki farms, and have encouraged fans to set up their own websites.
Wikis can reach truly huge sizes. To put them up as candidate for a
is an understatement.
See the list of largest wikis
. Note: If you're looking for
, we're on the list at the bottom. The first list only has MediaWiki wikis.
The "dead tree" equivalent of this is
The Magazine Rule
open/close all folders
Alien Wiki: An interesting wiki documenting every alien species ever created in fiction.
Alternate History Wiki & AH.com wiki: For, well, Alternate History.
The Chaotic Neutral Wiki: A wiki devoted to chaotic neutrality in all its forms.
The Christmas Specials Wiki: Christmas-themed TV episodes and specials
Creative Sci-Fi Wiki: Wiki for people who like to create their own sci-fi settings.
The Cutting Room Floor: Dedicated to all those features that did not make the cut.
DramaWiki: Asian live action dramas.
Emoticon Wiki: Emoticons.
Fictional Creatures Wiki: A work in progress wiki documenting every fictional creature that is not an alien.
The Knot Atlas: For mathematical knots, akin to knots that wires get tangled into.
LOLCats Bible: The Bible if it were written in LO Lspeak.
Poserpedia: Free content for Poser and DAZ Studio.
Romance Wiki: Romance Novels.
Super Powers Wiki: Almost, if not all types of extraordinary abilities that has ever been created in the world of Fiction.
TL Wiki: Translation Wiki, for Fan Translations of visual novels.
TYPE-MOON Wiki: The Nasu Verse, Canaan and every other work affiliated with Kinoko Nasu and Type-Moon.
Villains Wiki: For all the Big Bads, Dragons, Evil Geniuses, etc..
Wikipedia Fakebandica: An index of Fake Bands.
Zombie Wiki: Everything there's to know about The Undead.
The very site you're reading right now, for television tropes ( and other media tropes).
Anime & Manga
Films — Animated
Films - Live-Action
The Babylon Project: .
Babylon 5 BattlestarWiki: All Battlestar Galactica (both the '70s original and the re-imagining) plus .
Caprica Boy Meets Wiki: .
Boy Meets World Breaking Bad Wiki: .
Breaking Bad Buffyverse Wiki The .
Buffyverse Cold Case Wiki: , the show.
Cold Case Criminal Minds Wiki:
Criminal Minds Deadliest Catch Fan Wiki: .
Deadliest Catch Degrassi Wiki:
Degrassi Dollhouse Wiki: .
Dollhouse Drake And Josh Wiki: .
Drake & Josh Elementary Wiki: .
Elementary Everybody Loves Raymond Wiki" .
Everybody Loves Raymond Farscape Encyclopedia Project: .
Farscape Firefly Wiki: (contains non-canon extrapolation).
Firefly The Fresh Prince of Bel-Air:
The Fresh Prince of Bel-Air Friends Central:
Friends Fringepedia: The Wiki.
Fringe Grimm Wiki:
Grimm Heroes Wiki: .
Heroes House Wiki: .
House The iCarly wiki:
iCarly Kamen Rider Wiki: The series.
Kamen Rider Knight Rider Wiki: .
Knight Rider Leverage Wiki: .
Leverage Lostpedia: .
LOST Memory Alpha: .
Star Trek The Mentalist Wiki: .
The Mentalist Metal Heroes Wiki: The series.
Metal Heroes Muppet Wiki: The Muppets, , Sesame Street and other Fraggle Rock Jim Henson projects.
Henson Alternative Wiki: All Jim Henson Company stuff aimed for more mature audiences (Puppet Up, Late Night Liars, etc.)
The Murder, She Wrote Wiki: .
Murder, She Wrote Our Gang Wikia Wiki: .
The Little Rascals The Outer Limits Wiki: .
The Outer Limits RangerWiki: Formerly known as The Morphing Grid, renamed to reflect that it covers as well as the Super Sentai franchise.
Power Rangers Scrubs Wiki: .
Scrubs Stargate Wiki: .
Stargate Verse The Suite Life of Zack and Cody Wiki: and The Suite Life On Deck.
The Suite Life of Zack and Cody Super-wiki: .
Supernatural Survivor Wiki: .
Survivor Tardis Index File: , Doctor Who , K 9 And Company , Torchwood , K9 and the The Sarah Jane Adventures .
Doctor Who Expanded Universe There's also the Doctor Who Questions wiki, which is a place for users to ask/answer questions about the series and related media.
Tokupedia: A wiki for the Toku genre which covers more minor tokusatsu shows as well serving as a hub for tokusatsu wikis such as the Kamen Rider Wiki, Ranger Wiki, and the Metal Heroes Wiki.
The Twilight Zone Wiki: .
The Twilight Zone U.S. Game Shows Wiki
Victorious Wiki: .
Victorious West Wing Wiki: .
The West Wing Wheel of Fortune History: , of course.
Wheel of Fortune Wiki 24: .
24 The Wild Wild West Wiki: .
The Wild Wild West Wizards of Waverly Place Wiki: .
Wizards of Waverly Place The X-Files Wiki: .
The X-Files Zoey 101 Wiki: .
(dot).hack Wiki: Wiki for games, anime, manga, novels and related media.
.hack Ace Attorney Wiki: series.
Ace Attorney Ace Combat Wiki: Dedicated to the video game series.
Ace Combat ADOM Wiki: The Ancient Domains of Mystery Roguelike.
Agarest Wiki: .
Agarest Senki Alliance of Valiant Arms Wiki:
Alliance Of Valiant Arms Alien Swarm Wiki: For the game.
Alien Swarm Arwingpedia: Wiki.
Star Fox Aselia: The .
Tales Series The Assassin's Creed Wiki: .
Assassin's Creed Asura's Wrath Wiki:
Asura's Wrath Amnesia: The Dark Descent Wiki: .
Amnesia The Dark Descent Bandipedia: series.
Crash Bandicoot Battlefield: The series
Battlefield Bayonetta Wiki: .
Bayonetta Bioshock Wiki: .
Bioshock Blood Wiki: series, as well as Blood .
Shogo: Mobile Armor Division Borderlands Wiki: .
Borderlands Bulbapedia: .
Pokemon Encyclopćdić Pokémonis: A network founded by Bulbapedia to establish wikis in other languages. Currently at 8, featuring English, German, Japanese, Polish, French, Portuguese, Spanish and Italian versions.
Pokemon Pokémon Wiki, formerly known as the Pokémon Encyclopedia: Another wiki about Pokémon and established rival to Bulbapedia, using Wikia instead of Mediawiki. Much less organized than Bulbapedia and still under construction.
Bully Wiki: .
Bully Caduceus Database: The wiki. Needs some Trauma Center Wiki Magic.
Call of Duty Wiki: The series.
Call of Duty Castlevania Wiki: .
Castlevania The Codex of Editable Wisdom: The series.
Ultima Combine Overwiki: and Half-Life .
Portal Command & Conquer Wiki: .
Command & Conquer LifeWiki:
Conway's Game of Life Counter-Strike .
Counter-Strike Crawl Wiki: .
Dungeon Crawl Stone Soup Creatures Wiki: life sim games and fan Creatures Game Mods.
A Dance With Rogues Wiki: A wiki for the Neverwinter Nights Game Mod .
A Dance with Rogues Dark Souls Wiki and Dark Souls Wikidot Wiki: .
DarkSouls Dead Island Wiki:
Dead Island Dead Rising Wiki , moved off Wikia in December and is now independent.
Dead Rising Dead Space Wiki:
Dead Space Devil May Cry Wiki: series.
Devil May Cry Diablo Wiki: The series.
Diablo Disgaea: .
Disgaea Donkey Kong Wiki .
Donkey Kong The Doom Wiki: .
Doom The ZDoom Wiki: Wiki of the ZDoom limit-removing port. Mainly a reference for modders.
The Doom Roguelike Wiki: .
Doom The Roguelike Dragon Age Wiki: Wiki for the franchise.
Dragon Age Dragon Quest Wiki: Wiki for the series.
Dragon Quest Dream of Mirror Online Wiki: for the Aeria Games MMORPG .
Dream Of Mirror Online The Dredmorpedia: .
Dungeons of Dredmor Dwarf Fortress Wiki: .
Dwarf Fortress Earthbound Wiki: , Earthbound , and Mother 3 .
MOTHER Earthworm Jim Wiki: . Mostly about the video game, but information about the Earthworm Jim animated series will be added eventually.
Encyclopedia Ermarian: / Exile .
Avernum Eternity Wiki: .
Project Eternity Etrian Odyssey Wiki: . Could use some Etrian Odyssey Wiki Magic.
EVElopedia: CCP's official wiki for .
EVE Online There are also quite a few unofficial wikis, which tend to offer more detailed information in certain areas due to being older.
Everquest 2 Wiki: (but not Ever Quest II EverQuest 1).
Fantendo: Nintendo Fanon Wiki.
FarmVille Wiki: .
FarmVille Fig Hunter Wiki: , as well as other games by the same author.
MARDEK The Final Fantasy Wiki: .
Final Fantasy Fire Emblem Wiki: franchise.
Fire Emblem Forbidden Siren Wiki: .
Siren Gaiapedia: .
Gaia Online Gearspedia: The Wiki.
Gears of War Golden Sun Universe: The Wiki.
Golden Sun Gotcha Force Wiki: The Wiki.
Gotcha Force GTA Wiki: The Wiki
Grand Theft Auto Guild Wars Wiki: The official wiki.
Guild Wars There are several wikis cataloguing the series:
Halo The Happy Wheels wikia
Hard Drop Wiki: .
Tetris Humongous Entertainment Games Wiki: Although still under construction, it covers nearly all of Humongous Entertainment's games.
The Wiki for , Neptunia or Nepperpedia, if you will.
Kid Icarus Inazuma Eleven Wiki: The wiki.
Inazuma Eleven iNiS Wiki: A wiki for the games made by iNiS, including , Elite Beat Agents , and Osu! Tatakae! Ouendan . Unfortunately, it's hardly been developed at all.
Gitaroo Man Insaniquarium Wiki . Still developing.
Insaniquarium INWiki: For . (Yes, even incredibly geeky browser-based games can have extensive wikis!)
Imperium Nova Jak and Daxter Wiki: series.
Jak and Daxter Kingdom Hearts Wiki: .
Kingdom Hearts The Kingdom Of Loathing Wiki: .
Kingdom Of Loathing King's Quest Omnipedia: .
Kings Quest Kya: Dark Lineage Wikia:
Kya: Dark Lineage La.MuLANA Wiki: Has a helpful Starter Guide, along with field maps and walkthroughs for those inevitable La-Mulana Guide Dang It moments.
The Liandri Archives: A wiki about the series of games.
Unreal LOTLWiki: A wiki for .
Limbo of the Lost Encyclopedia Twinsunica: A wiki about the games.
Little Big Adventure LSD: Dream Emulator Wiki:
LSD Dream Emulator Lunar Wiki: .
Lunar Mabinogi World,
Mabinogi The Mass Effect Wiki: .
Mass Effect Mega Man Knowledge Base: .
Mega Man Metro 2033 wiki
Metal Gear Wiki: .
Metal Gear Metroid Wiki: .
Metroid Minecraft Wiki: .
Minecraft Monkey Island Wiki: series.
Monkey Island MYSTlore: "A wiki for all things , D'ni, and Myst Uru."
NethackWiki: The wiki.
NetHack Nexus War Wiki: The wiki for .
Nexus War Nintendo Independent Wiki Alliance (NIWA): Not a wiki (though they do intend to put one on the hub site eventually), but an independent network of them. Founded by Bulbapedia, Zelda Wiki, and Super Mario Wiki as a backlash against Wikia, as laid out in the NIWA manifesto. Currently comprised of 18 wikis, including the above three.
Animal Crossing Okami World Wiki: .
Ōkami Paradox Wiki: .
Red Alert 3 Paradox Paragonwiki: .
City of Heroes Perfect Wiki: .
Perfect Dark Pikipedia: .
Pikmin Plants vs. Zombies Wiki: .
Plants vs. Zombies Platina: .
Ar tonelico Primal Wiki: For the tiny following of the 2003 PS2 exclusive game .
Primal Professor Layton Wiki: .
Professor Layton Princess Maker Wiki: A wiki about .
Princess Maker Psi Ops wiki Psi-Ops: The Mindgate Conspiracy
Psycho-pedia: Wiki, the Psycho-pedia at Double Fine.
Psychonauts Ratchet & Clank Wiki: .
Ratchet & Clank RayWiki: .
Rayman Resident Evil: .
Resident Evil Recettear Wiki: .
Recettear Red Dead Wiki: and Red Dead Revolver .
Red Dead Redemption Rogue Galaxy: .
Rogue Galaxy Rosenkreuzstilette Wiki: Wiki for the doujin game series of the same name.
Rune Factory Wikia:
Rune Factory RuneScape wiki: .
RuneScape Ryzom wiki: .
Ryzom Sam & Max Wiki: .
Sam And Max Freelance Police Scribblenauts: .
Scribblenauts The Secret World Wiki (TSWW): .
The Secret World Shadow Hearts: and Koudelka.
Shadow Hearts Shin Megami Tensei Wiki: .
Shin Megami Tensei Shiren the Wander Wiki: The Super Famicom and Nintendo DS game .
MysteryDungeon: Shiren the Wanderer Shoryuken: A compendium for strategies for all kinds of Fighting Games.
Silent Hill wiki: .
Silent Hill SimsWiki: .
The Sims 2 SmashWiki: .
Super Smash Bros SMWiki: Super Mario World ROM hacking
SNK Wiki: .
SNK Sonic News Network: .
Sonic the Hedgehog Soulcalibur wiki: .
Soul Series Space Quest Omnipedia: .
Space Quest Speedrunwiki for advice on speedrunning and time attacking strategies in numerous games, primarily , GoldenEye , Perfect Dark , and the Time Splitters 2 and Mario Kart series.
The Legend of Zelda Spelunky Wiki: .
Spelunky Spiral Knights Wiki:
Spiral Knights SporeWiki: .
Spore The S.T.A.L.K.E.R. Wiki: .
STALKER Starcraft Wiki: .
StarCraft Liquipedia: Programming, tactics and strategy in Starcraft.
Liquipedia II: Programming, tactics and strategy in Starcraft II.
Starfy Wiki: .
The Legendary Starfy Startopia wiki
StrategyWiki: Collaborative video game strategy guides and walkthroughs.
Street Fighter Wiki:
Street Fighter Suikopedia: .
Suikoden Super Mario Wiki:
Super Mario Bros. MarioWiki, the Wikia alternative, although it is significantly less popular than Super Mario Wiki and has many stub articles.
Super Robot Wars Wiki: .
Super Robot Wars Tactics Ogre Wiki: .
Tactics Ogre Team Fortress 2 Wiki: . As official a wiki can get, due to being hosted by Team Fortress 2 .
Valve themselves Tekkenpedia:
Tekken TibiaWiki(a): .
Tibia Timeshift Wiki: .
Time Shift Touhou Wiki: .
Touhou UESPWiki: .
The Elder Scrolls UFOPaedia: .
X-COM The Ultronomicon: wiki.
Star Control II The Urban Dead Wiki: .
Urban Dead Valkyrie Profile Wiki: .
Valkyrie Profile The Vault: . Moved to his own site, for the same reasons above. The old one still exists, but this is the most updated.
Fallout Viewtiful Joe World Cinema: .
Viewtiful Joe Vindictus Wiki,
Vindictus /v/'s Recommended Games Wiki: Exactly What It Says on the Tin.
Wars Wiki: franchise ( Nintendo Wars Advance Wars, Battalion Wars, Game Boy Wars, Famicom Wars and Super Famicom Wars).
Wesnoth wiki: .
Battle for Wesnoth WiKirby: .
Kirby The Witcher: Both the novels and the game, .
The Witcher The World Ends With You Wiki: .
The World Ends With You Wowpedia: Official wiki.
World of Warcraft WowWiki - Less official wiki.
Wowhead - Wiki based mainly around guides to quests. Each quest can be discussed with questions, tips, and comments regarding bugs.
The series has two. X-Universe Argonopedia is about the series as a whole, while X3 Wiki deals specifically with X3: Terran Conflict.
The Xenosaga Wiki: .
Xenosaga Yume Nikki Wiki:
Yume Nikki Zelda Wiki: .
The Legend of Zelda zOMG Wiki: .
6teen Wiki: .
Sixteen Adventure Time With Finn and Jake Wiki: .
Adventure Time Aladdin Wiki: , the sequels and the series.
Aladdin The Amazing World Of Gumball Wiki: .
The Amazing World Of Gumball American Dad! Wiki:
American Dad Animaniacs Wiki: .
Animaniacs Archer Wiki:
Archer Avatar Wiki: and Avatar The Last Airbender .
The Legend of Korra Batman: The Brave And The Bold Wiki:
Batman The Brave And The Bold Ben 10 Planet: and its Ben 10 spinoffs.
Bob's Burgers Wiki: .
Bobs Burgers Bravestarr Wiki: .
Bravestarr Cartoon Network Wiki: Cartoon Network shows, both animated and live action.
Captain Planet and the Planeteers Wiki: The wiki for .
Captain Planet And The Planeteers The Centurions Wiki: .
Centurions Chowderpedia (aka Chowder Fan Club): .
Chowder The Cleveland Show Wiki: .
The Cleveland Show Courage the Cowardly Dog Wiki: .
Courage the Cowardly Dog Criptapedea The Cryptid Wiki: . Don't expect much from it; as of 19 September 2012, it has only four articles.
The Secret Saturdays Danny Phantom Wiki: .
Danny Phantom Daria Wiki: .
Daria Darkwing Duck Wiki: .
Darkwing Duck DC Animated Universe Wiki: The DCAU.
The Disney Wiki: Disney
Disney's Hercules Wiki: and the series.
Hercules Drawn Together Wiki: .
Drawn Together Ed, Edd N' Eddy wiki: wiki.
Ed Edd N Eddy Exosquad Wiki: .
Exo Squad The Fairly Oddparents Wiki:
The Fairly Oddparents Family Guy Wiki: .
Family Guy Filmation Ghostbusters Wiki: .
Filmations Ghostbusters Flapjack Wiki Harbor: .
The Marvelous Misadventures of Flapjack Futurama Wiki: The Wiki.
Futurama Galaxy Rangers Wiki: .
Adventures Of The Galaxy Rangers GargWiki: .
Gargoyles Generator Rex Wiki: .
Generator Rex Gravity Falls Wiki: .
Gravity Falls The Grim Adventures of Billy and Mandy Wiki: .
The Grim Adventures Of Billy And Mandy Hanna-Barbera Wiki: Hanna-Barbera cartoons.
Hey Arnold Wiki: .
Hey Arnold Imagination Companions: .
Foster's Home for Imaginary Friends The Invader Zim Wiki: For . Is not the best of wikis, and could use some help, but is still very informative.
Invader Zim Jimmy Neutron Wiki: .
The Adventures Of Jimmy Neutron Jonny Quest Database Wiki: .
Jonny Quest Kaijudo Wiki: The Kaijudo Wiki.
Kim Possible Wiki: .
Kim Possible King Of the Hill Wiki: .
King of the Hill KND Code Module: .
Codename Kids Next Door Lilo and Stitch databank: , the sequels and Lilo & Stitch .
Lilo & Stitch: The Series Looney City Citizens: and related projects, such as Looney Tunes and Tiny Toon Adventures .
Animaniacs Marvel Animated Universe Wiki: Marvel characters in animation.
My Little Pony Wiki: (the original)
My Little Pony Nickipedia: Nickelodeon shows, both animated and live action, from the 1990s on.
Phineas and Ferb Wiki: .
Phineas And Ferb Pooh Wiki: The Wiki for all things .
Winnie the Pooh Pound Puppies Animated Wiki: Not much, but it has character descriptions of the dogs from both the Hanna-Barbera and The Hub versions of Pound Puppies. The following wikis are much more in-depth:
The Raccoons Wiki: .
The Raccoons Rangerwiki: .
Chip N Dale Rescue Rangers Recess Wiki: (Needs more love, please help!)
Recess Regular Show Wiki: .
Regular Show Robot Chicken Wiki: .
Robot Chicken Scoobypedia: .
Scooby-Doo SilverHawks Wiki: .
Silverhawks South Park Wiki: .
South Park SpongePedia: .
Spongebob Squarepants Storm Hawks Wiki:
Storm Hawks Superfriends Wiki: Covers the various series as well as almost every DC animated show (as well as a few live-action shows) pre-DCAU.
Superfriends The SWAT Kats Encyclopedia: .
SWAT Kats Tackipedia: Richard Williams.
Teen Titans Wiki:
Teen Titans ThunderCats Wiki: and Thundercats .
Thundercats 2011 Tiny Toon Adventures Wiki: .
Tiny Toon Adventures Titan Maximum Wiki: .
Titan Maximum TMNTPedia: .
Teenage Mutant Ninja Turtles Total Drama Wiki: and its Total Drama Island spinoffs.
T.U.F.F. Puppy Wiki:
TUFF Puppy Ugly Americans Wiki: .
Ugly Americans The Venture Brothers Wiki:
The Venture Brothers Wikisimpsons: . Also a few articles on The Simpsons Life in Hell.
Xiaolin Showdown Wiki: .
The 1930s Wiki: A wiki about the Dirty Thirties.
Armeniapedia: The Armenia Wiki.
Bacon Wiki: Dedicated to all things bacon, including Kevin Bacon.
Ballotpedia: USA referendums and ballot initiatives.
Blightynet: The United Kingdom.
Boobpedia: Exactly what it sounds like. NSFW, obviously enough.
Cactopedia: The encyclopedia for lovers of cacti everywhere.
Candy Wiki: A wiki about candy and sweets of all kinds. Sadly, it seems to have been abandoned.
Chickipedia: The only intelligent commonly known repository of information to refer to women as "Chicks"; or, if not the only one, certainly the best.
Closing Logos Group Wiki: Closing logos.
Conservapedia: An alternative for those who think The Other Wiki has a left-wing bias.
Creation Wiki: Wikipedia alternative for Creationists.
Davis Wiki: A wiki for the city of Davis, California, complete with in-jokes and pages for various residents.
Dickipedia: The wiki of dicks (Dicks as in bad people, not as in male genitalia). Cannot actually be edited.
Encyclopedia Titanica: The RMS Titanic Wiki.
Esolangs: Esoteric Programming Languages wiki.
Fort Wiki: Historic military forts in the United States and Canada.
Intact Wiki: The anti-circumcision wiki.
Less Wrong: A wiki on the subject of Rationality, Transhumanism and The Singularity.
Metapedia: The wiki for neo-Nazis.
Microbe Wiki: On microbes and microbiology.
Micro Wiki: A wiki dedicated to micronations.
MobileRead Wiki: Of e-books and ways to read them.
NFL Wiki: The wiki for the National Football League.
OpenStreetMap: Editable map of the Real World.
Pet Diabetes: A wiki for owners of diabetic pets. Yes, really narrow foci.
Pop-Tarts Wiki: In case you were left without TV to catch the conclusion of the latest Pop-Tarts commercial, or are wondering why your favorite flavor was discontinued.
Rational Wiki: For those who like to mock pseudoscience, fundamentalism, and Conservapedia.
Real Life Superheroes Wiki: A wiki on those who dress up in costume and try to do good.
Rochester Wiki: A wiki on the city of Rochester, New York.
SubtiWiki: A wiki about Bacillus subtilis. Yes, a wiki dedicated to a single species of bacteria.
T-Vox: Transsexual wiki.
wikiFeet: Feet (of female celebrities).
WikiFur: Furry Fandom.
Wikipole: A pole-dancing wiki. Many images of moves are animated. The site was created by a woman and it's actually pretty tasteful and informative.
Wikitravel: A detailed wiki on travel spots around the world.
Wookieepedia: The hirsute encyclopedia "by and for contemporary Wookiees". Not to be confused with the Star Wars Wiki of the same name.