As originally reported by SEW, is a piece written by Ben Edelman who analyses violations in Googles editorial guidelines and possibly laws over in the US for some ppc adverts which is worth a read.

The report dicusses the use of the word ‘free’ in adverts that are actually anything but, aswell as adverts that clearly impersonate well known sites.

Edelmen suggests Googles low priority at cleaning up such ads might just be for self gain. Surely not…

“In January I estimated that Google and Yahoo make $2 million per year on ads for “screensavers” that ultimately give users spyware. Add in all the other terms with dubious ads — all the ringtone ads, the for-free software downloads, ads making false statements of product origin, and various other scams — and I wouldn’t be surprised if the payments at issue total one to two orders of magnitude higher.”