It's no secret that Google has, on a very steady basis, dominated its competition and managed to return big profits. And Carol Bartz may be in no position to question the company's methods. But Yahoo's CEO nonetheless chose to point out a potential weakness today, and she may be on the right track. Bartz told Jonathan Fildes , "Google is going to have a problem because Google is only known for search. It is only half our business; it's 99.9% of their business.