Saw this article today:
http://tech.fortune.cnn.com/2012/04/16/amazon-knock-off-bestsellers/?iid=HP_LN&hpt=hp_bn9
"There are a number of books on Amazon with similar titles to much more popular ones. Fifty Shades of Grey, the steamy romance novel that has created buzz around the world, is the No. 1 selling book on Amazon. Also available on Amazon: Thirty-Five Shades of Grey. Both books are wr…