ronburk - 2:30 am on Mar 11, 2008 (gmt 0)

I wonder how "category" is defined. If it's very broad, the baby could get thrown out with the bath water.

Indeed, and Google notes that in their "new feature" description of this, well, new feature. Their text sounds eerily similar to the "here's how to block advertisers -- but please don't do it!" message given to AdSensers for years.