I JUST joined last night, and I've been busily building my own boards for the last 24 hours. I think I may slow down soon on that and find out how ELSE the place works.
You should check out loveit.com, it's the same principle but a better interface, proper credit to the originators of where the images come from, and terms that do not put all copyright blame onto users (users have some serious legal fallout potential based on pinterest's terms).
You're welcome =) Most people don't realize it, because most don't pay all that close of attention to terms on sites (I mean come on, behave yourself and you're pretty much set, so why bother with their walls of legalese text?? heh). But if you do a search, you can find lots of blog posts & articles from a bunch of months ago where people started to really think about what their terms meant when applied, and realized just how screwed the users could be if anyone decided they really had a problem with their stuff on pinterest. The company made sure that it wouldn't be them in trouble for it, that it's entirely on the users. Not only who first added it, but also anyone who reshares it. It's ridiculous! So Loveit.com founded themselves on being the proper-principled version of pinterest, essentially, haha. The staff there is great, and they even sent me a free shirt when I was having some issues with it and having to msg with the girl back & forth a handful to get things working, lol. It's a great site