Amazon Kindle Books Hit Libraries

Amazon (AMZN) officially launched its e-book lending library.

The e-commerce giant boasts 11,000 participating libraries that will make Kindle books available.

"When you borrow a Kindle public library book, you'll have access to all the unique features of Kindle books, including real page numbers and Whispersync technology that synchronizes your notes, highlights, and last page read," Amazon said on its Web site. "After a public library book expires, if you check it out again or choose to purchase it from the Kindle store, all of your annotations and bookmarks will be preserved."

Barnes & Noble (BKS)and Sony (SNE)>already offer a similar service for their e-readers.

In other e-reader news, RadioShack(BKS) said it will begin selling Barnes & Noble's Nook on Oct. 3. The device will start at $139.

-- Written by Jeanine Poggi>To follow the writer on Twitter, go to http://twitter.com/jpoggi.