Check out Jeff Jarvis’s post Google: Monopoly or Marketplace where Jeff claims that Google is not a monopoly, while describing it in a way that clearly indicates it is. The collapse of Yahoo has left Google in total control of the search advertising market. If you run a commercial website of any kind, you have to get up every morning and worry about what Google is doing to you, and you have no recourse. Google raises rates on adwords: you have no recourse. Google cuts your share of revenue on text ads on your site: you have no recourse. You have no recourse, because Google has no viable competitors. No viable competitors means they have a monopoly. And, no amount of dancing around the issues by bloggers like Jeff Jarvis will change that fact.