Install Frostwire (http://www.frostwire.com/) which is a free version of Limewire minus the ad/spyware. Then learning how to construct your searches is the hard part — for videos try "webcam" to get started. Also, "TakingEmHome" and "MASHA" have returned interesting stuff for me. Of course there's also the dreaded "pthc" query, but use this with caution (e.g. "pthc good", "pthc new", "pthc orgasm", "pthc sound") or you'll get a bunch of stuff that's either crap or gross.