It's no secret I love my Kindle. If I could afford to only read on my Kindle, I would. When lending books for the Kindle became an option, I made a Google document with all of the books I owned that could be lent and shared it with all of my friends and family who also had Kindles. I liked the idea of sharing books, as I've never been one to hoard books I've read (books I have yet to read are a different story. My bookshelves tell a different story about me: the books I think I want to read someday but never seem to.)
My Google document just got blown out of the water by ebookfling.
The concept is simple and similar to Paperback Swap: lend a book, get a credit. Borrow a book for a credit. I chose to manually list my Kindle books with them, but you can also import your library. I have several books I want to read soon (mostly the Orange Prize longlist), and I won't loan them until I've read them. Not all Kindle books are loanable of course, but when you add a book to your wishlist it shows up with "lending disabled" in red, which is helpful. You can browse for books currently available to be borrowed as well as keep a wishlist of items you want to be notified when they become available. The lending guidelines are still incredibly strict: you may lend a book only one time and only for fourteen days. Many publishers do not allow their e-books to be lent (thanks to Macmillan and Scholastic who do!).
There are other websites offering similar services (Lendle and Booklending are only for the Kindle). It will be interesting to see if one begins to dominate the market.
How do you loan your e-books to friends?
I am not affiliated with ebookfling.com nor am I receiving compensation for this post. I think they provide a fantastic service.