I wrote about the book, How to Win Friends and Influence People in a blog called, If you want honey, don't kick over the beehive...
The google ads on the page were things like ordering bee hives, and organic honey, mind you, this is with my entering keywords with another SEO plugin.
As soon as I activated auto-keywoard-and-description-generator the google ads immediately changed to things like, public speaking and positive thinking. They haven't all been that right on, but no beehive ads since.
Pretty good, don't you think?
http://wordpress.org/extend/plugins/auto-keywoard-and-description-generator/