It was only almost 4 years ago when Amazon began selling its own branded e-reader to the market called the Kindle. According to a press release by Amazon.com, Amazon e-books have overtaken the sale of print books offered through Amazon, paperback and hardcover included. As of April 1st 2011, Amazon.com reports that it sells 105 e-books for every 100 print books offered by the online retailer. Keeping in mind the statistic does not include free e-books, the feat is an even larger accomplishment.

With this monumental achievement, it is understandable that Amazon began offering an ad-enabled version of the Kindle for a slightly cheaper price.  The strategic move allows the giant retailer to fulfill many different price ranges that consumers are willing to pay in order to get into the world of e-books. It was not a coincidence that the ad-enabled Kindle became one of Amazon’s hottest selling items just a couple weeks after launch. The success of the Kindle line of devices have evolved the e-book revolution and with the eventual announcement of the next generation of devices, Amazon will be a leader in the market for years to come.

Source Amazon