Stories

Anath's Mirror  by
Fandom: Smallvile
Warning: non
Story:

Cover Story
Fandom: Highlander
Warning: non
Story: 

Jack?
Fandom: MacGyver/Highlander
Warning: non
Story: 

Websites

Cross Gate (site / yahoo group)
Stargate SG-1 Crossover Stories, this is a page of links found by the members of the CrossGate List

Shahrazad.net
Stories by Category -  Crossover

Stargatefan.com
Stargate sg-1 fanfic archives, stories by Category -  Crossover  

Wormhole Crossing
A Stargate: SG-1 and Stargate: Atlantis Crossover FanFiction Archive.