Amazon sold over 4 million Kindle devices in December

Amazon have had a very Merry Christmas when it comes to Amazon Kindle sales over the holiday season. Amazon customers purchased millions of Kindle Fires and millions of Kindle e-readers. 2011 was the best holiday ever for the Kindle family, with one million Kindle devices sold each week.

Amazon CEO and founder, Jeff Bezos, says "We are grateful to our customers worldwide for making this the best holiday ever for Kindle." He continues pointing out the fact that the #1 and #4 best-selling Kindle books released in 2011 were both published independently by their authors using Kindle Direct Publishing.

Three Kindle-based products took the top three spots on Amazon's best seller list, with the Kindle Fire, Kindle Touch and Kindle taking out the top three spots, respectively. Amazon's latest, Kindle Fire, was the most gifted and wished for product on Amazon this season, and was also the top selling product in the UK, France, Spain and Italy. Kindle Fire also took out the best selling product on Amazon's mobile site.

Some random Amazon-based facts:

Amazon customers purchased enough copies of Walter Isaacson's "Steve Jobs" book to create a stack taller than Mt. Everest.

The cumulative weight of the Bowflex 552 Adjustable Dumbbells purchased by Amazon customers would outweigh more than 70 adult elephants.

If you unfolded and stacked each pair of jeans purchased by Amazon customers this holiday, the height would be 2,500 times taller than the Statue of Liberty.

Amazon customers purchased enough sweaters to outfit each of Santa's reindeer during Christmas Eve deliveries for the next 14,000 years.

Amazon customers purchased enough copies of Just Dance 3 to give 15 copies to each person who participated in setting the world record for simultaneous dancing.

Amazon customers purchased enough HeatMax HotHands Handwarmers to give a pair to each resident of Iceland.

Amazon customers purchased enough Rory's Story Cubes to give a cube to each person watching the New Year's Eve ball drop live at Times Square.