Kindle E-Book Sales Surpass Hardcovers at Amazon

"We've reached a tipping point with the new price of Kindle—the growth rate of Kindle device unit sales has tripled since we lowered the price from $259 to $189," said Jeff Bezos, Founder and CEO of Amazon.com. "In addition, even while our hardcover sales continue to grow, the Kindle format has now overtaken the hardcover format. Amazon.com customers now purchase more Kindle books than hardcover books—astonishing when you consider that we've been selling hardcover books for 15 years, and Kindle books for 33 months."

http://www.npr.org/templates/story/story.php?storyId=128629853&sc=emaf

Clay Shirky: How cognitive surplus will change the world

Clay Shirky looks at "cognitive surplus" -- the shared, online work we do with our spare brain cycles. While we're busy editing Wikipedia, posting to Ushahidi (and yes, making LOLcats), we're building a better, more cooperative world.