I'm sure everyone has seen this already, but just in case...
This is THE best fanfiction (if you can call it that) I have EVER read. It surpasses Steven Moffat in the realms of mind-fucking and is just pure genius and is absolutely AMAZING!!
It is
The Theory Of Narrative Causality by anon over at the
sherlockbbc_fic prompt meme (part XV)
Prompt: Sherlock is a well-known fanartist whose online antics always land him on fandom_wank. John's a beloved BNF fanfiction author. They meet at a convention; geeky love ensues.
Basically John (
jumperfkr ) and Sherlock (
cons_detective ) are both fans of Sherlock Holmes (the BBC version not having been idealised [yet?]) and write fanfiction/draw fanart on LiveJournal. They are paired up for the Sherlock Holmes Big Bang (dunno if that's a real thing or not) and so get talking online. Then the rest of the fandom takes great pleasure in shipping them together, add in some mysterious trolls, and you get complete and utter mayhem!! Written in LJ community/journal style. The final part is due to be posted on Tuesday! XD
Why this is awesome: It is too awesome for words. Or at least I can't express the awesomeness. Just. Go. Read. Now.
There are also two (so far) fics-of-fic written by
raggedyhipster here and
here. There are a few icons floating around too *winks and points to icon* and as well as the two actual journals linked above there is also
jim_fromit and
miss_toby