I though this was pretty interesting http://www.physorg.com/news98160497.html, bet someone has already beaten me to it and already posted a thread on it again lol
That's usually what I hear from people that couldn't make it work. It's never the person managing the account...it has to be the system itself
You'll also hear them from people who easily give up. But.......really, there are some issues going under the table with google adwords. Displaying inactive keywords,getting impressions from paused keywords, etc etc
I am on the verge of giving up for the very same reason, I found one of mine on a kitchen manufacturers website...about as far away as you could get from my subject.....