For all you Fantasy and SF-readers out there I found the Suvudu Free Book Library
http://www.suvudu.com/freelibrary/ This is Random house (whith Bantam and Del Rey)so it looks very promising.
The site intro:
" Welcome to the Suvudu Free Book Library. We know it can be hard to navigate the countless fantasy and science fiction series out there and figure out which ones are right for you. Well, we're here to make those tough decisions a bit easier on you. With the Suvudu Free Book Library, you can read the first book in some of our most acclaimed series absolutely free! We're kicking off the library with five full-length novels for you to sample, but we'll be adding new titles on a regular basis, so be sure to sign up for our newsletter so you're the first to find out what our newest free offerings are!"