I used librarything first and like it better, but the free account there limits the book numbers so severely that it I couldn't add anymore. And the service is not so essential or valuable to me that I want to spend money on it. I really just want to track what I've read in a year, nothing social, and for a while I just had a local file on my computer, but entering books there was less convenient and I always forgot. I ignore the social stuff on Goodreads, and you can turn most of the messages off, so it didn't come across as too obnoxious for me before it started prompting me for Facebook functions I can't even access.