What is WOWIO?
WOWIO is a new kind of online bookstore that enables readers to download ebooks for free, using commercial sponsorships to compensate authors and publishers. Readers get free ebooks. Sponsors get a powerful new channel to communicate their message to precisely the people they want to reach. Publishers get a new means of distributing their books, expanding their readership, and monetizing their intellectual property.
So click on the link and give it a try. All books are in Adobe Acrobat format.