In some ways this article highlights how fragile Google is. If you think about how quickly Google cleaned up in the search market and yet 97% of their revenues

In some ways this article highlights how fragile Google is. If you think about how quickly Google cleaned up in the search market and yet 97% of their revenues are web Ad based (according to the article). While not all of those are going to be Ad Words a lot will be and if someone replaced them in search (not Cuil, obviously) then they would be in trouble, fast.