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* The FanFic/AntiClicheAndMarySueEliminationSociety has a [[http://acmses.wikia.com/wiki/ACMSES_Wiki Wiki]] maintained by the authors that details events and characters.
* [[MindScrew What exactly is happening]] in the final episodes of ''WebVideo/BoardJames'' can only truly be understood if one watches Creator/JamesRolfe's breakdown of it. There are some hints to the truth (such as a FreezeFrameBonus of James' friends after he says "Imagine [[IronicHell being trapped for all eternity with two ghosts]]") but the totality of how this [[TheVerse 'verse]] works and what is really going on cannot be divined without help.
* WebVideo/ConfusedMatthew has the same opinion. He really didn't care for the number of things in ''Iron Man 2'' that required in-depth knowledge of the Marvel Universe to understand, especially Nick Fury suddenly coming in halfway through the film and the film acting like we're well aware of who he is, after just one brief scene ''after the credits'' in the first Film/IronMan film. He ended up declaring that he now refuses to see ''The Avengers'' just out of spite over this.
* ''Podcast/CriticalHit'' has an [[http://www.majorspoilers.com/critical-hit-first-arc-exit-interview interview]] with GM Rodrigo on the Major Spoilers website, and he moderates the [[http://www.majorspoilers.com/smf/index.php Major Spoilers Forum]] where he answers questions people have about the game.
* ''WebVideo/{{Dream}}'' (the Minecrafter and [=YouTuber=]) reveals in a livestream that sometimes, Minecraft Manhunt videos require more than one take, as Dream is occasionally caught and killed before even getting gear — and it wouldn't exactly be entertaining for the audience if a video was three minutes long.
* ''Literature/{{Elcenia}}'' has two indices, one for [[http://elcenia.com/setting.shtml setting]] and one for [[http://elcenia.com/cast/cast.shtml characters]]. There's nothing you ''need'', per se, but it does clarify or teach not-fully necessary bits of the background, and help keep everything else straight if one forgets.
* After he finished ''Literature/FineStructure'', the author released supplementary material that didn't fit in (some canonical, some not) and started [[WordOfGod taking questions]]. Some of the most pressing questions, however, were dismissed by ShrugOfGod -- the fact that certain questions are never answered is part of the point.
* ''WebVideo/HonestTrailers'': The trailer for ''Film/TheRiseOfSkywalker'' complains how the ''Franchise/StarWars'' franchise has become extremely confusing for those that only watch the movies, since you have to follow tons of side material, including things like Website/{{Twitter}} posts explaining plot points and ''VideoGame/{{Fortnite}}'' (which had a ''Star Wars''-centric event which provided a scene alluded to in the opening crawl), for everything to make sense.
-->'''Narrator:''' Didn't know [Janna was [[spoiler:supposed to be Lando's daughter]]]? It was in the ''Rise of Skywalker'' visual companion book, idiot. You should have been reading that in-between rounds of ''Fortnite''! Call yourself a ''Star Wars'' fan...
* In ''Literature/TheLastAngel'', the author goes into a lot of details on the setting in answering readers' questions on the forum he posts on.
* ''Roleplay/LeagueOfIntergalacticCosmicChampions'' falls into this with several characters introductions being deleted off the web, information revealed in other cybersoap boards and author fics giving backstory.
* The official website for ''WebVideo/TheMercuryMen'' provides tons of supplementary material, including blueprints, digital props, and faux-1960’s trading cards.
* ''ARG/TheNoedolekcinArchives'': The bulk of the lore not provided in the videos can be found on the creator's Twitter.
* The ''Series/{{Noob}}'' webseries uses [[Literature/{{Noob}} novels]] and [[ComicBook/{{Noob}} a comic]] to tell about story elements that can't be put onscreen. While each media is supposed to be self-sufficient while focusing on different parts of the story, some important info ends up being present (or at least made clear rather than implied) in only one of the three formats.
* In her now defunct formspring, Elisa Hansen used to answer questions about WebVideo/TheNostalgiaChick, including explaining character motivations.
* In [[Literature/NottingCove Fairies of Notting Cove]] an extra seventh chapter was released alongside the final chapter. It contained mostly meaningless details with some things that couldn't be written in.
* ''WebOriginal/ObscuredEyes'': Lauren's [[https://www.deviantart.com/lovelylaurenarts/gallery/85176377/obscured-eyes DeviantArt]] and [[https://lovely-lauren-arts.tumblr.com/ Tumblr]] pages are dedicated to explaining the characters' backstories in more detail.
* ''WebAnimation/PortByTheSea'': The official website revealed background information on the two main characters.
** Port and Umi are childhood friends.
** Port wants to grow up to be like his father, a famous sailor.
** Jolly Roger (Port pet crab) was his first catch and became his lifelong friend.
** Umi never knew her parents would like to learn about them someday.
** Ankle will be a very important character who appears in unexpected places and, for some reason, doesn’t seem fond of the ocean.
* Plinkett from ''WebVideo/RedLetterMedia'' '''hates''' this trope, and during one of his ''Franchise/StarWars'' reviews points out how stupid it is; when watching a movie everything you see really needs to be explained ''within the movie itself,'' not in countless other pieces of literature and comics.
* [[RuleOfThree Completing the trifecta]], WebSite/SFDebris ranted on his review of Creator/DannyBoyle's ''Film/{{Sunshine}}'' and ''Film/StarTrek2009'' about how this is a pet peeve of his, because you shouldn't have to go out and buy a comic book/additional novel/check a website/hunt for a deleted scene to be able to understand a detail (or series of details) that appears in the movie and that, standing by itself, is actually (borderline or totally) nonsensical. He has mentioned that he is a teacher and thus this being a personal peeve makes sense: he cannot give a good grade to a report that forces him to hunt for data the student decided to exclude. He even went as far as lament that this trope dilutes [[Film/StarTrek2009 Nero's]] impact tremendously, making him an "emo Romulan" when the backstory is probably ''even better than [[Film/StarTrekIITheWrathOfKhan Khan's]]''.
* During the run of their series ''Kissing in the Rain'', WebVideo/ShipwreckedComedy ran a contest that allowed fans to write [[https://emilyhopebunny.tumblr.com/tagged/fan-canon-experience/chrono fan fiction that would be included as canon backstory for the characters]]. [[https://web-series.fandom.com/wiki/Kissing_in_the_Rain#Related_Content Earlier videos created by Shipwrecked and Kuang are also considered KitR canon.]]
* The story of ''WebVideo/SonicTheHedgehog2SpecialEdition'' is entirely contained in its [[http://lparchive.org/LetsPlay/Sonic%202%20SE/manual manual.]]
* ''Roleplay/SurvivalOfTheFittest'' (and by extension other PlayByPostGames) can fall into this at times. Some information is only given in character profiles, and not mentioned anywhere else for any number of reasons. At other times, you may have to look through [[DevelopingDoomedCharacters pre-game]] threads, other characters' plotlines, and sometimes even past versions to fully understand events that go on in the main game.
* While watching WebVideo/ToBoldlyFlee, you could ''probably'' guess that Turrell was exhibiting NeverMyFault qualities while blaming WebVideo/TheNostalgiaCritic for blowing up his planet (which didn't happen), but that's only confirmed in the ''Franchise/ScoobyDoo'' commentary where Rob says Turrell got "distracted" by the Critic's review of ''Film/BattlefieldEarth'' and that's why he's so pissed off.
* ''Literature/TrintonChronicles'' also has a wiki page which is mostly kept by the author's, there is no known [[WordOfGod Canon Bible]] par-say but there is a web page, a wiki page, and secret documents maintained by the creator.
* ''WebVideo/UnwantedHouseguest'': Doctor Wolfula is a recurring character, without any mention of what he is. You'd have to go to his own youtube channel to find out that he's an alien called a Wolfulite.
* Enforced in-universe in ''ARG/WelcomeHomeClownIllustrations'' — without any available footage, the only information available about this show comes from outside material.
* The ''Literature/WhateleyUniverse'' has a wiki that's maybe four or five hundred pages, most of which came from the secret [[WordOfGod Canon Bible]] the authors work from, even though it's maintained by fans. It has tons of detail, even on characters we haven't seen yet and secret threats we haven't even had ''mentioned'' yet in {{Canon}}.
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