Online social networks can connect you with similar-minded reading enthusiasts, as well as with fellow writers and industry professionals who can be great business
contacts.
Goodreads
Free website for book lovers to view other people's bookshelves, read and write reviews, ratings, join a discussion group, start a book club, contact an author, and even
post your own writing.
Shelfari
https://www.goodreads.com/?shelfari_flash=true
Create a shelf full of books you have read or intend to read, review, tag, and rate books, join book groups, and share with others.
Social networking site for professionals, where you can view your business contacts and who they're connected with.
LibraryThing
Enter what you're reading or your whole library—it's an easy, library-quality catalog. LibraryThing also connects you with people who read similar works.
Stay hyper-connected with this micro-blogging service for friends, family, and co–workers who communicate through an exchange of quick, frequent posts.
Buzzfeed
https://www.buzzfeed.com/books
News, videos, and quizzes about current books.