Goodreads - See what your friends are reading.
Project Gutenberg - Project Gutenberg offers free ebooks to download.
LibraryThing - A home for your books.
Glose for Mobile - A social reader for ebooks, now on Android
BookAuthority - BookAuthority collects the most recommended books on business, technology and science - as featured on CNN, Inc and Forbes
Ritual Essential for Men - The scientifically-developed multivitamin for men