SmallP - 11:52 pm on Jan 28, 2012 (gmt 0)
This from the Official Google Blog earlier this week:
"But thereís so much more that Google can do to help you ..... We can provide more relevant ads too. For example, itís January, but maybe youíre not a gym person, so fitness ads arenít that useful to you. "
I think the era of optimising our websites to attract the right ads is over. Ads are becoming more and more "personalised" just like Search results.