Shawn was telling me about this last week, it happened pretty quick, it being Shawn being featured in a NY Times article on AdSense. JenSense also reports this and she is the thread creator of the thread on this topic at DigitalPoint forums named AdSense article in NYTimes with Shawn Hogan.
To read the article, you need to register at the times, its free and quick. The article is named Google's Shadow Payroll Is Not Such a Secret Anymore. The article basically uses Shawn as a case study for the Google AdSense program, hence the "shadow payroll" of thousands of publishers getting paid by Google. They also talk about DigitalPoint forums AdSense revenue sharing idea which was done in May of 2004. Make sure to check out that awesome picture of Shawn, his cat and his 30" Apple Cinema Display at the article.
Forum discussion at DigitalPoint Forums.