I’m sure that’s due to Yahoo dumping Google as it’s search engine.
The search engine wars are going to be very interesting this year. Google has lost a big chunk of its market share since Yahoo decided to get into the search engine business … and MSN is coming too.
It’s going to be like the “old days” when we had several major search engines competing against each other rather than Google just dominating the universe.
I’m an “old school” geek. I remember when AltaVista was the hottest search engine on the Web! 
In the past couple of years, you could make good money by focusing all of your marketing efforts on Google alone. But now you will have to spread your efforts around more.