Meh... THere's a Delta Files board for the Lovecraft stuff ya know. Excellent stories from a classic author; excellent tabletop game from Chaosium, and Delta Files online is a good Lovecraft (Cthulhu) RP site.

For Gaia, I'd suggest something a little milder. Richard Pickman and his friends showing up for supper isn't exactly what I'd promote in a Gaia RP...