* ''Fanfic/BringerOfDeath'' is first a ''DragonballZ'' fic, and second an attempt to [[DoingInTheWizard plausibly explain the physics of DBZ.]] The result is an epic story that appeals to fans [[WillingSuspensionOfDisbelief unwilling to suspend their disbelief]] in poorly-explained spaceship mechanics, etc.
* [[http://www.fimfiction.net/story/73406/rainbow-in-the-dark The writer of]] ''FanFic/RainbowInTheDark'' uses this as a TitleDrop of the ArcWords to a good effect of this trope.
* The ''Film/BackToTheFuture'' fanfic ''[[http://www.fanfiction.net/s/3993367/1/The_Almanac_Chronicles The Almanac Chronicles]]'' is accurate with respect to geography, as well as history from 1958 to [[spoiler: November 22, 1963, when President John F. Kennedy is ''not'' assassinated [[ForWantOfANail due to a side effect of Biff's fortunes]] ]].
* The fanfic ''[[http://www.fanfiction.net/s/3210906/1/The_Butterfly_Effect_0 The Butterfly Effect 0]]'', based on the [[Film/TheButterflyEffect film]], is accurate with respect to southern New York state geography as well as historical events.
* [[http://www.fimfiction.net/user/kalash93 Kalash93]] puts A LOT of effort and research into his stories. The greatest examples of this so far are the [[http://www.fimfiction.net/story/81159/1/racer-and-the-geek/predawn gun porn and detail about the military equipment]] in ''FanFic/RacerAndTheGeek, and the high levels of realism and detail put into the military aspects of [[http://www.fimfiction.net/story/90939/1/shell-shock/the-tower Shell Shock.]] His erotic pieces greatly avert YouFailSexEdForever. He isn't very fond of using artistic license for anything.
* A lot of details went into the researching behind the locations, schools and universities that appear in the ''TsubasaReservoirChronicle'' [[AlternateUniverseFic real-world AU]] [[http://tvtropes.org/pmwiki/pmwiki.php/FanFic/Freefall Freefall]], as well as [[spoiler: the symptoms of leukaemia, which a main character is diagnosed with early in the plotline.]]
* ''FanFic/BetweenMinds'' ({{Videogame/Portal}} and {{HalfLife}}) is packed with this with everything from helicopter specifications to language translations to first aid to building layouts to real-life weapons to cut game material to the actual mechanics of an {{EMP}}.
* Half of ''FanFic/HuntingTheUnicorn'' is a CerebusRetcon of [[{{Glee}} Blaine's]] RelationshipSue and KnightInShiningArmor portrayal. The other half is [[DeconstructionFic showing what it would take to produce someone like Blaine.]] Given that the author is studying psychology and read up on medieval chivalry, it isn't surprising that some readers find it so believable.
* The author of ''FanFic/HogyokuExMachina'' asked her high school readers if they could define tuberculosis without using Wikipedia to determine if Ichigo and friends would reasonably know. She even checked if ''Series/{{House}}'' airs in Japan to justify Ishida watching the show.
* ''Fanfic/TheWizardInTheShadows'' is notable for having lots of accurate references to the First and Second Ages of Middle Earth.
** ''Fanfic/ChildOfTheStorm'' takes it up a few notches and shows that this part of [[https://www.fanfiction.net/u/2204901/Nimbus-Llewelyn Nimbus Llewelyn's]] SignatureStyle. The story uses historically accurate Norse titles and foods, drawing on a lot of minor throwaway details from obscure corners of each of the [[MegaCrossover canons]] and displaying an awareness of basic physics (in chapter 54, Harry is flying on a souped up Firebolt, which, in the interests of fairness, can't exceed its production top speed on the Quidditch Pitch. Harry considers that he'd rather not find out what would happen to him and the broom if he suddenly lost a third of his speed, and skirts the Quidditch pitch).
*** It also displays awareness of certain political realities - for instance, it is abundantly clear in earlier chapters that Harry feels that he has a very large bone to pick with Odin, and it is repeatedly pointed out to him that Odin is an absolute ruler and cannot/will not accept such levels of defiance in public, even from his grandson. In private, under certain circumstances, he is rather more accommodating and understanding, the implications of YoungerThanSheLooks where an attractive teenage girl is concerned and uses the exploration of consequences of the basic premise (Harry is the son of Thor, who was incarnated as James Potter in his first shot at humility) of the fic as the engine of the plot.
* In [[FanFic/EquestriaAHistoryRevealed Equestria: A History Revealed]], the author clearly has done some research into the show and the franchise as a whole. Little in-jokes from the fanbase are prevalent in the fic, and most impressively, the author manages to tie in even the most obscure sources to create one unified Equestrian history canon, pulling from the show, comics, and even the often-forgotten chapter books.
* In the ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfiction {{Fanfic/Silent Knight}}, Nightfyre's flightsuit puts constant pressure on her limbs, ensuring proper blood-flow to the brain during stressful maneuvers. This is the same way real life flightsuits work for jet and fighter pilots.
** In the same chapter, Ash Coat notes some materials on the [[spoiler: human sword]] that genuinely act as absurdly sharp material when treated correctly; it's suggested that some {{Applied Phlebotinum}} is employed to sustain this condition.
* Cornova did a lot of research with regards to the ins and outs of the Anime/{{Pokemon}} anime for PokeWars.
** A prime example is how he included an entire chapter on Kaiza, a character from an episode of ''{{Anime/Pokemon}}'' that never made it out of Japan.
** Also, numerous one-shot characters (Duplica, Yas and Kas Gyms, AJ, etc.) are portrayed perfectly in character.
* The author behind ''Fanfic/{{XSGCOM}}'' has an author's notes section after every chapter, where he/she explains from ''exactly'' where in the original works every character, plot-twist and gadget in the chapter came. He does the same for ''Fanfic/HuntedTribes'' and ''Fanfic/NewCaliforniaDreaming''.
* The ''WesternAnimation/TotalDrama'' fanfic writer, Tropers/{{Gideoncrawle}} shows his work [[SignatureStyle routinely]]. In his first story, ''Fanfic/{{Legacy}}'', this is most apparent in the [[DescriptionPorn details]] related to the victim's wound. His later stories have substantial Notes sections that explain the more obscure allusions, among other things.
** His Season 1 reimagining story, ''Fanfic/TheLegendOfTotalDramaIsland'' tends to show his work in-story for such things as inventive solutions to certain problems, and the effects and treatment of hypothermia.
* [=GreenSonic21=], the author of ''FanFic/SonicGenerationsFriendshipIsTimeless'', has clearly done plenty of research on not only pretty much all of the Sonic games, but also [[Anime/SonicX the]] {{WesternAnimation/Sonic|SatAM}} [[WesternAnimation/TheAdventuresOfSonicTheHedgehog cartoons]] and [[ComicBook/SonicTheComic comic]] [[ComicBook/SonicTheHedgehog books]], and it clearly shows. He's even referenced events from [[ComicBook/MyLittlePonyFriendshipIsMagicIDW the FiM comic books]] into the story.
* One of the reasons the ''Webcomic/{{Homestuck}}'' fan blog ''FanFic/{{Brainbent}}'' is so popular with fans is because of how accurately and sympathetically it portrays people with mental health issues (except John, who's [[AmbiguousDisorder disorder is unspecified]]). In particular, Autistic readers really like the non-stereotyped portrayal of Autism.
* ''FanFic/FriendshipIsOptimal'' has a lot of accurate science, and the author has clearly done a lot of research on artificial intelligence and philosophy.
** The RecursiveFanfiction ''FanFic/FriendshipIsOptimalAlwaysSayNo'' similarly shows this, with military and medical details being accurately depicted.
* ''[[http://www.potionsandsnitches.net/fanfiction/viewstory.php?sid=2660 Different, Not Defective]]'' features a well-researched and sensitive portrayal of an autistic {{Harry Potter}}.
* FanFic/DividedRainbow, which contains lots of links to phenomenon such as moonbows and lunar phases.
* Aaron12, author of the ''WesternAnimation/DannyPhantom'' fanfic series, ''FanFic/FacingTheFutureSeries'' takes his time research the cartoon, picking up obscure details and other things to avoid {{Continuity Snarl}}s. It only helps to make the series more popular.
* There's a [[http://vicki595.livejournal.com/363916.html women's basketball rpf pirate!au fic]] that actually has [[http://vicki595.livejournal.com/364097.html a list of references]] the author used when researching the era. Half of the fic is written as a popular history book, half as a novelization of a film based on the book.
* As part of its DeconstructorFleet, quite a lot of the setting of ''FanFic/SonicXDarkChaos'' was based on (and inspired by) obscure Bible stories and passages, and so is much of the symbolism. A lot of the Emirate of Mecca was based on the actual ''Hadiths'' of Muhammed as well. Several lines of dialogue from Angel characters are in accurate Hebrew and Latin too. On the other side, the Demon Empire is a very accurate space Expy of the historical Roman Empire; corrupt, hedonistic, but dedicated to preserving law and order.
** Sonya's plasma-focused katana is correctly depicted as a backup weapon. In medaevel Japan, the samurai preferred bows and spears over their swords, which they used if anything got too close. She also prefers using guns - [[RealityIsUnrealistic the samurai admired firearms]] and used them extensively after they were introduced to Japan.
** Maledict's character is a personification of [[Creator/NiccoloMachiavelli Machiavelli's]] eponymous ''Prince'' - wanting to be both feared and loved - rather than the PopculturalOsmosis version. It helps that the author has actually read ''The Prince'' in real life.
* Every hotel, restaurant, new age shop, and strip joint mentioned in ''FanFic/OriginStory'' is an actual location, and all the prices involved are authentic. The writer mentions several times in his notes that he actually called these people up and asked them questions. Of special note were the women who worked in the men's department at Macy's in New York City, who actually had a twenty minute long phone call with the writer in which they described what could be seen outside the store from the window's of their department.