Looking for a new way to find your next read? Check out NoiseTrade. This website has been enabling musicians to give away their music since 2008, and earlier this week they added ebooks and audiobooks to the mix.
Finding new content on NoiseTrade is pretty simple. Simple browse the site, listen to a sample or read a description, and if you find something you like just enter your email and request a download code. But be careful; some of the ebooks are excerpts and not the complete book.
If you like you can leave a tip for the artist, but that's not required. All you need to do is provide an email address. This gives the author or artist a chance to keep you up to date on their next book or gig.
In a way this isn't really a free ebook site; readers are trading their email address for the ebook or audiobook. But it can still be a useful tool for both readers, who get free content, and for authors, who get a chance to build a mailing list of fans.