I have used Google Adwords and gave it a serious try. I spent about 2000 USD on them and really what it appears to me is that most of the clickage is click fraud. Mind you for purposes of covering my arse this is only my opinion. So google if you are reading this you can’t sue for an honest opine.
I think Google stock is going lose its shine. At some point people are going to be going back to Yahoo for this sort of stock play. We’ll see in the fullness of time won’t we?