Bookshare - I'm giving away my books
Four Hour Book Club - 300+ Books recommended on the Tim Ferriss Show 📚
Bookicious - Find the best new book to read with books collections for makers, founders and entrepreneurs.
Shufflebook - Exchange used books locally
BookAuthority - BookAuthority collects the most recommended books on business, technology and science - as featured on CNN, Inc and Forbes
24-Hour Bookclub - Every few months, we pick a book and read it in one day.