How many people out there use Adwords optimization? I know there are many because almost every blog I visit there are Google adwords somewhere on the index page. Yes, I have them too. How are they working out for you? It's working out for Google, I'm sure.

Adwords enables Google to convert its search engine service to a revenue-generating system, while at the same time giving anyone the opportunity to set their own fee for displaying the ads. The cost-per-click payment system used by Google has largely supplanted the old-fashioned banner advertising system in which Web publishers displayed fixed ads on their pages and were paid based on the number of times those ads are viewed.