Goodreads - See what your friends are reading.
PostImage.org - Provides free image upload and hosting integration for forums.
Bookicious - Find the best new book to read with books collections for makers, founders and entrepreneurs.
Pic Time - Pic Time is a versatile utility that comes with online galleries’ exclusive service with multiple tools and features.
Bookcelerator - A curated directory of books that will make you smarter
Stampsy - A single place to share, curate and discover visual content