Library Thing vs. Shelfari

Right now, I can pretty much say that I prefer Library Thing over Shelfari because the Shelfari site is not loading for me, so I can't even check it out. I'm not sure what the problem is, but I'll check back later to see if it's working. As for Library Thing, I LOVE the site! What a great idea to have people catalog and tag their books online so that others can find people with similar reading interest, as well as find books that are similar to any work you enter or very unlike it. The site also has groups and message boards, so users can discuss books with one another. I particularly love that the search feature allows users to search by works, authors, tags, in addition to talks messages, groups, and members. After navigating around the site for a bit, I deemed Library Thing worthy of being added to my favorites!