http://www.csi-forensics.com
Name: CSI Forensics: From out of the Lab
Type: Archive, challenges
Fandom(s): all CSI's, Crossovers
Pairings: slash, het, gen
Notes: search primarily by pairing or genre, lots WIP
RSS: Yes
Current Favorites Location: Links
Recheck frequently (biweekly or so)

http://www.area52hkh.net
Name: Area 52: The HKH Standard
Type: Archive, challenges
Fandom(s): SGAtlantis, SG1 (and crossovers)
Pairings: Slash only
Notes: complex searches, fics come as popups
RSS: yes (but not available to LJ)
Current Favorites Location: Links
Recheck frequently (weekly)

okay let's start with http://www.wraithbait.com
Name: Wraithbait
Type: Archive, Challenges
Fandom(s): Stargate Atlantis (and crossovers)
Pairings: Het, Slash, Gen
Notes: lots of WIP; search mainly by pairing or genre
RSS: yes
Current Favorite Location: Links
Recheck frequently (daily)