I found it through Vintage Erotica Forum (
http://vintage-erotica-forum.com) when folks would publish their pictures, there were a number of different sites. I started seeing Pimp and Host, and noticed that some of my VEF buddies would have whole collections associated with their P&H ID. So I tried.
Easy. Free. Secure.
And lots of material to share. I got hooked and haven't looked back.