Google gets its revenue from online advertising. One could make the argument that it is not diversified enough. Is that something that you think about? If so, what are some of the things you are doing about it?
The criticism is correct. We do get the vast majority of our revenue from advertising, and it's a business that a lot of other people would like to be in. So the first thing is, let's understand that we're in a great business. Also, there are some emergent models for revenue that are very interesting. The one that is probably most interesting is Google Apps. We're now beginning to get some significant enterprise deals. Basically, companies are tired of dealing with the complexity of the old model, and our products are now strong enough that they really can reliably serve a corporation.