View Google Press Release

It's interesting to note that 99% of Google's revenues come from advertising. It's even more interesting that in the same quarter 2005 42% of their ad revenue came from "Google Network Sites" while in Q4 2006 only 37% did. I think this is largely due to advertisers becoming wary of the click fraud that still runs rampant in the paid search industry.

Still, massive profits means that Google can expand into new and exciting areas at will. They control the search engine industry and will likely do so for years to come.