This may be the coolest thing to happen to the ebook digital revolution since…well, the iPad. In fact, it may even be better. Ebooks bought through Amazon’s Kindle store (through which the site sells its digital books) can now be loaned out for up to 14 days. Now you can send a friend one of your fav ebooks for free! But, like all good things, there’s a catch. According to Amazon, not all books are lendable – it is up to the publisher or rights holder to determine which titles are eligible for lending.