Kindle books beat print
By Asha

It was an idea whose time had come.  But it is still refreshing to see how quickly people are choosing eBooks over hard copy.

Amazon began selling hardcover and paperback books in July 1995. Twelve years later in November 2007, Amazon introduced the revolutionary Kindle and began selling Kindle books. By July 2010, Kindle book sales had surpassed hardcover book sales, and six months later, Kindle books overtook paperback books to become the most popular format on Amazon.com. Today, less than four years after introducing Kindle books, Amazon.com customers are now purchasing more Kindle books than all print books - hardcover and paperback - combined.

There are about 950,000 different books on sale at Amazon.