I agree wholeheartedly with my Foolish dueling partner John Bluis that Google
The problem, however, is that the Internet is wide open and cheap to access. In fact, one of Google's original claims to fame was how cheap its infrastructure was. Its network of small search servers were collectively more powerful than the giant, expensive individual machines others used. But where there's profit, there will soon be competition. Thanks to the relatively low barriers to entry on the Internet, as Google's profits soar, so will the desire for competitors to muscle in on some of the action.
For a parallel of what may happen, consider network television. There were once three major players: CBS
With deep enough pockets, anyone can build a competitive offering. With pockets the size of Microsoft's