LibraryThing is an online resource and application used by readers, booksellers, and librarians to catalog and organize their books. It allows users to create a catalog of books they own, have read, or want to read. Users can search for books in the LibraryThing catalog, rate and review books, create lists of books, and share their book collection with other users. It also provides tools for organizing book collections and tracking books, including a tagging system, book reviews, and book discussion forums. LibraryThing also offers a range of applications and plugins to integrate LibraryThing into other websites, such as blog and social networking sites.
Discontinued Official site not available.
Discontinued No news on their twitter account since 2015 and the website is unavailable.
Discontinued Discontinued, now redirected to Goodreads: http://alternativeapp.info/software/goodreads/
myanimelist is for cataloging anime / manga, not books.