Crossover
Definition
A crossover is a story in which one universe melts with another universe, or characters from one universe cross over into another universe. An example for a Supernatural/X-Files crossover would be a story in which Sam and Dean help Fox Mulder and Dana Scully investigate a supernatural phenomenon.
Crossover Fanfiction
Some might argue whether crossovers are necessarily crack.
A better point may be that there's no chance I could index them all, so here's some less known/more cracky crossovers. See say, http://community.livejournal.com/sn_crossovers/ for more.
WARNINGS AND DISCLAIMER:
The stories linked here may contain sexually explicit material. Stories will provide specific warnings, ratings and disclaimers in their header, please take the responsibility of paying attention to those.
RealPerson/SPN crossovers (eg. Dean/Jared)
2006-02-18 / Substitutes by frayen (Dean/Jared)
2006-02-20 / He's apropos of nothin' by magickly (Sam/Sheryl Crow)
2006-03-02 / LA story by frayen (Sam/Jensen)
2006-04-04 / Not You But Him by lyra-wing (Dean/Jared)
2006-04-15 / There are no sign-posts part 2 by lalejandra (Dean/Christian Kane)
2006-5-18 / Three Signs You've Been Working Too Hard by slytherinblack (Dean/Jensen)
2006-07-09 / How to get rid of a poltergeist and sucked off by a boybander in less than 10 minutes by stellamira (Dean/Lance Bass)
2006-07-31 / Jared and Dean’s Adventures in Monster-killin’, Sam-retrievin’, and Sexual Confusion by ciaan (Jared/Dean, Jared/Jensen)
2006-08-05 / Crackalicious Adventures in the Land of OTP by keeperofthecheez (S/D, JA/JP)
2006-09-02 / Damaged by cherryscott (Dean/Jared) Rec
2006-12-28 / Comprehensive master list of all Jared/Dean fic ever maintained by ciaan (Jared/Dean)
Angel, Buffy 'Verse
2006-02-05 / Slither by fryadvocate
2006-02-13 / Not Fade Away by ethrosdemon (Sam/Connor)
2006-04-15 / Redemption is A Four Letter Word by ethrosdemon (Dean/Lindsey)
2006-07-05 / The Blood of the Redeemer by ethrosdemon (Dean/Lindsey)
2007-02-05 / Days Like This by killabeez (gen)
Smallville
2006-01-13 / Kansas by ethrosdemon
Boondock Saints
2006-01-29 / Compels You Part 1, Part 2, Part 3, Part 4 by lyra-wing (various combinations of the four boys)
2006-02- 08/ Roadhouse by lisaroquin (implied Murphy/Dean)
2006-09-09 / Hustle by MayPirate and Nymeria (Connor/Murphy, Dean/Sam)
2006-09-16 / Walking A Line by Groaty (Connor/Murphy)
Batman
2006-01-04 / Rule of Threes by glockgal (Gen, Batmanverse comment fic)
2006-02-18 / Soldiers by monkeycrackmary (Batmanverse AU)
2006-04-07 / Brotherly Love by teh-no
Hell Blazer (ie John Constantine)
Finding Hell by Maya Tawi (Dean/Constantine)
2006-01-07 / Demons by guede_mazaka (Dean/Constantine)
2006-08-26 / Not Her Type by lunardreamed (Dean/Abby Sciuto)
2008-10-21 / Way To Kill by marasmorgue (Dean)
Xena/Hercules 'Verse
2006-03-18 / Gods have bad days, too by lyra-wing
Firefly
2006-03-29 / Ticket to Anywhere by monkeycrackmary (Simon/Sam)
Gilmore Girls
2007-01-28 / Untitled by scoob2222 (Lorelai/Sam)
Harry Potter
2007-01-28 / Middle Child by flareonfury
2007-06-16 / Underground Hole Confessions by flareonfury (Hermione/Sam)
2007-06-17 / Family United (Sequel to Middle Child) by flareonfury
2007-06-21 / Bedtime Story by flareonfury (Hermione/Sam)
2007-06-23 / True Love's Kiss by flareonfury (Hermione/Sam)
2008-01-08 / Once is Happenstance by auriliawestlake (gen, rated M for language)
2008-06-24 / Twice is Circumstance by aurilia (gen, rated M for language, sequel to Once is Happenstance)
General Crossover Communities
- sn_crossovers - Crossover Community on LJ
- chosen_hunters - Multifandom SPN and BtVS crossovers
- rps_spn_fic - SPN/RPS crossovers
- spn_btvs - SPN/BtVS crossovers
- spn_charmed - SPN/Charmed crossovers
- spn_darkangel - SPN/Dark Angel crossovers
- spn_heroes - SPN/Heroes crossovers
- spn_hp - SPN/Harry Potter crossovers
- spn_scifi - Crossovers between SPN and any science fiction fandom
- spn_smallville - SPN/Smallville crossovers
- spn_vm - SPN/Veronica Mars crossovers
- winchesterwarts - SPN/Harry Potter crossovers
- spn_xm - SPN/X-Men crossovers
- spn_angel - SPN/Angel the Series crossovers
Crossover Pairing Communities
- buffyxdean - Crossovers involving Buffy (BtVS) and Dean
- dean_alex - Crossovers involving Alex Krycek (X-Files) and Dean
- faith_dean - Crossovers involving Faith (BtVS) and Dean
- peter_and_sam - Crossovers involving Peter Petrelli (Heroes) and Sam Winchester
- thebeckles - Crossovers involving Veronica Mars and Dean
- winchullivan - Crossovers involing Chloe Sullivan (Smallville) and the Winchesters
- lorelai_sam - Crossovers involving Lorelai Gilmore (Gilmore Girls) and Sam Winchester
Other Links
- Supernaturally Twisted - Automated Crossover Fanfiction archive.