Our triad (myself, member Violet, and Anne, not a member here) play a lot - though based on your screen name I can tell you we won't have a lot in common as neither myself as Dom or either of my girls enjoy the Gorian style. Strokes for folks and all that...
Sites related to Poly and BDSM - www.xeromag.com
is the only one I'm really aware of. Some good content there, not a lot of interaction though.
Welcome to the boards!