Mulder and Skinner
Home of the Goddess, Sergeeva's Walter Altar, Walter Skinner's Journal, X-Files from the Imagination of your Twisted Siste
Scully
Exfilia - Center for the Preservation of Red Blood, ScullySlash Archive, ScullySlash List Story Archive
Amirin's X-Files Slash
Mulder/Krycek and Mulder/Skinner stories, and links to other archives.
Down in the Basement
Stories portray a variety of pairings from the series. Successor to Archive/X.
Drovar's Other Fiction
Mulder/Skinner and Mulder rape stories, as well as some gen fiction.
Griffin's Den
Gen and Mulder/Skinner and Spender/Krycek stories.
Jessica Harris' Slash Page
Stories based on Mulder, The Lone Gunmen, and Scully.
MJ's Fiction and Links
Pairings include Mulder/Skinner, Skinner/Kryeck, and Krycek/Spender.
MJ's X-Files Slash Fiction
Mulder/Skinner, Mulder/Krycek, and other pairings including the Well Manicured Man and Spender.
MTA Slash Division
Stories from Mulder Torture Anonymous.
RatB
Archive formerly known as Truly Erotic Ratboy/Mulder Association. Mostly Mulder/Krycek stories, but includes Skinner/Krycek and Once a Thief stories. Hosts a mailing list.
Riticulan Amanuensis's Fiction
Krycek-centered stories, including Mulder/Krycek and Skinner/Krycek pairings, as well as crossovers to Highlander and Pretender.
SKSA
Affiliated with the Skinner/Krycek mailing list. Some stories include threesomes with Mulder.
Slashing the Fox
Gen and slash stories and drabbles. Pairings include Mulder/Krycek, Mulder/Skinner, Mulder/Alien Bounty Hunter, and Mulder/Other.
The Slipper Archive
All m/m and f/f pairings allowed; all stories have ratings of PG-13 or G. Includes resources for slash writers.