While constructing my previous post, I did a google search for "Charlene Li Click Fraud". Basically she's never talked about it - yet...
What struck me was the increasing number of AdWords Ads related to click fraud that showed up on Google. Even though I type "Click Fraud" about 40 times a day into this blog, you never see any those ads on my AdSense IFRAMES, do you? Hmmm.
Those advertisers are all agencies and software companies vying to track your conversion rates and find click fraud for you. I guess the people that know what's what with AdWords Search and Content networks aren't putting their money on the content side.