Remember that old-school pleasure of loaning books to friends? Now you can swap, borrow or lend e-books on ebookfling.com. Sign up for free and list your Amazon Kindle or Nook titles. When someone requests one of your books, you can lend it for 14 days, after which point it reappears on your reader (or iPhone/Pad, BBerry, etc). Get credits for lending, use those credits to borrow—so easy!
The site is still new and rights to some titles are pending but it’s worth checking out.
iknowcoolthings 
Hey, this is very cool!!