Clear as mud.. thats the best way to describe Googles new Adsense optimization advice. Last night the Adsense team started sending personalized but automated optimization tips to publishers.
The advice is simplistic and obvious which might be helpful for a new publisher with a mental handicap. The personalized message I received "Placing more than one ad unit on a page often generates more revenue. Many of your sites only contain one ad unit.". That bit of advice was not helpful for me. It was made even more useless by failing to mention which of my sites it was intended for. A step in the right direction but, as with all things Google, they could communicate more clearly.
//WP: edited out grammar error