I don't like these ads show me otgers
Google it seems are rolling out a brand new beta feature for adsense. It allows website visitors to change what type of ads are shown.
If you click on the threadlink above and look at the left hand side (where adsense is) (you may have to refresh a times) you can insert you own keywords and phrases for the ads to be based on or select from a pre-defined list titled 'Change to Ads About:'
No official word from Google on this.