A History of Revision

An anonymous reader writes: After reading both Slashdot summaries on sock puppet blogs / reviews and the potential failure of Wikipedia, I came across a few writeups by a security researcher regarding real life examples of such "astroturfing" — apparently performed by Adware company Zango. Not only had they seemingly created fake reviews on site such as Amazon (now deleted), but they had applied this same technique to their Wikipedia page...under the name of the co-founder of the company. After being called out on this, more changes were made from an IP Address, not a username. However, it looks like they have a way to go before they realise what's a smart move and what isn't. My question is, is this kind of astroturfing still liable to fall under the upcoming law against this sort of thing with regards "fake reviews" on sites such as Amazon? And if not, what exactly can Wikipedia do about such flagrant puff-piece editing that completely destroys any supposed neutrality of its content?