Google's Eric Schmidt, the online search giant's point man for all things Washington, goes before a Senate panel this week to argue the company is not a rival-abusing bully, but in fact is struggling to stay on top.

Google Inc controls more than two-thirds of the global search market. But Web technologies such as social networking and smartphone applications offer new ways for people to find information -- putting pressure on the company.

At the hearing before the Senate Judiciary Committee's antitrust panel on Wednesday, Schmidt will argue that Google's critics are wrong to say it gives preference to its own products. Rather, he will say Google is just trying to deliver the best-cultivated search results for users.