I've joined a few model paysites for a month each to test 'em out in the past. Jelena Jensen's site (which was nice) and a few other models, I can't recall what ones they were now. I joined porn.com for a month too, I ended up with like 50gigs of videos from that site and haven't cared to pay for a site since. It's too easy to get carried away when you have access to so much.