I have found that I can search easier logged in to Amazon and sending the books to my Kindle. If you go here ...
http://www.amazon.com/b/ref=amb_link...d_i=1286228011
You can get to free book collections. I read in the Wall Street Journal that there will be an update to Kindle software by the end of the year that allows e-books to be borrowed from the library! Yippee!