The list itself is pretty amusing, apparently comprised of two porn movies and a selection of newspaper articles about sports (presumably from the Las Vegas Review Journal). Of course, as we noted originally, even though these copyrights are registered in Righthaven's name, it's likely that they aren't actually valid or enforceable, since the whole crux of the Righthaven saga is that many of the rights transfers to the company were shams, so the original copyright holders still control the works. Buying one of these registrations at auction is a way to own a piece of copyright trolling history, but it's probably not going to make you the legal owner of Ebony Amateurs Vegas Edition #10.
http://www.techdirt.com/articles/20120430/07072118706/more-righthaven-ip-up-auction-including-name-righthaven.shtml
http://www.techdirt.com/articles/20120430/07072118706/more-righthaven-ip-up-auction-including-name-righthaven.shtml