Goodreads is a free website for book lovers. Imagine it as a large library that you can wander through and see everyone's bookshelves, their reviews, and their ratings. You can also post your own reviews and catalog what you have read, are currently reading, and plan to read in the future in your own personal library. Don’t stop there – join a discussion group, start a book club, contact an author, and even post your own writing. Goodreads has also added in its own book recommendation feature. Simply rate the books that you have read and it will give you book recommendations based on your ratings and also your virtual bookshelves in your library.

LibraryThing is a free website that allows you catalog the books in your personal library. It also has a feature to be able to view books in other people's personal libraries that have some of the same books as you do to get ideas for new books to read. You can also join one of their many online book clubs.

Simply type in the title of a book you have enjoyed and the website will give you recommendations for new books to try based off of your favorites.

Whichbook gives readers an enjoyable and intuitive way to find books to match their mood. Instead of starting from the overwhelming choice of books available, whichbook starts from the reader and enables each individual to build the elements of that elusive 'good read' we are all looking for but don't quite know how to define.