• 4 million Kindles sold in December … well, at least we think so source

» It’s an estimate based off of Amazon’s evasiveness. They said that customers “purchased well over 1 million Kindle devices per week” in the month of December. Sales of Kindle e-books were up 175% from last year’s period between Black Friday and Christmas; so while Amazon may not give us clear numbers, the company seems to be doing well in the fields it created.