Rocket Reads - A simpler alternative to Goodreads
Goodreads - See what your friends are reading.
24-Hour Bookclub - Every few months, we pick a book and read it in one day.
LibraryThing - A home for your books.
Reese’s Book Club - Every book, everyone’s invited
Booqsi - Booqsi is a modern social platform built specifically for the book community, allowing you to engage with others in a more meaningful way about books.