goodread

I've talked-up LibraryThing a few times. There's another, similar, virtual library called GoodReads. There's an excellent comparison of the two here:

http://booksellerchick.blogspot.com/2008/10/goodreads-librarything-shelfari-one-to.html

GoodReads has an import tool that is supposed to accept the .csv file from LibraryThing; however, when I tried it, I had to change the column title for the isbn's to lower case, and even then it only imported 39 of my 367 books. I'll probably fool around with it more this weekend to try to get it to work.