I have a decent list of queries I've been collecting data on to compare once word came that a change was rolled out. This is an interesting one that I saw in a comments thread somewhere...
http://www.google.com/search?hl=&q=how+to+renew+an+expir...
The Demand Media angle is really interesting too. I love the bit quoted in the Searchengineland article from the CEO, wondering how they got tagged with the "content farm" label. Pretty sure this is where I first saw it...