Yes indeed, Swaptor is pretty good when I can get on (not lately
). Overexposure is pretty good from my experience as well with a few K users, and generally at least 1K. Some other consistent, but smaller, networks include OpenWorld, Everworld, zonkylnap, and OggVorbis. I've seemed to get successful correct searches with those. If they don't work out, sorry, it's just my good experience, I suppose.