The thing that people seem to miss about not just Google, but also our competitors, Yahoo, eBay and so forth, is that there's an awful lot of communities that have never been served by traditional media.

The issues of wireless versus wireline gets very messy. And that's really an FCC issue, not a Google issue.

I think it's pretty clear that the Internet as a whole has not had a strong notion of identity. And identity means, 'Who am I?' Fundamentally, what Facebook has done has built a way to figure out who people are.

When the Internet publicity began, I remember being struck by how much the world was not the way we thought it was, that there was infinite variation in how people viewed the world.

I use Google+, and I find the quality of the comments are very sophisticated because there is more trust inside of Google+ than there is inside of Twitter and Facebook, for example.