Was just reading this interesting article and mentioned it to my girlfriend. She said this was old news and told me about a shampoo with seemingly bogus reviews. So I did some digging... Seems like there were some voting rings on this product too. Or maybe all three of these people just happened to be reviewing both Argan Oil Shampoos and iPhone 5 Battery Replacement's:

http://www.amazon.com/gp/cdp/member-reviews/A36TZR6GRB6F0Q/r...

and

http://www.amazon.com/gp/cdp/member-reviews/A8YI1C83DWXF5/re...

and

http://www.amazon.com/gp/cdp/member-reviews/AE5R00L7R0AF5/re...