Yeah I found this one too. It's where I got the dancefloor book from.

There looks to be some really useful stuff (if you've got the time and patience to read through a library of PUA materal!) but there's a lot of crap on there as well. It's all about sifting through and reading whatever seems relevant.

I'm thinking about reading some David D stuff from here. My cousin's really into him, apparently he's a cross between Mystery and Natural methods.