sga_episodefic collects everything episode-related. Recs are welcome, but plenty of people post their fics to the community, or link to new fics from the comm. And like you saw, they've got challenges and tag-a-thons, too. Of course, the only reason I know this is because I'm friends with the mods. *g* There's just too many comms to keep track of out there!

Like - uh. Okay, yeah, the NO SLASH I find unnecessarily hostile, when other pairings are welcome.