There's always people - it doesn't take many - who have a different psychological makeup than most of us who really get joy out of provoking. They don't always believe the things they say, they just like to watch people go crazy. You know, I knew people like that in elementary school - bullies of one kind or another.

One thing I'll say about Hitler that many people don't realize - and I don't mean to besmirch the industry - but he did get his start, not only as an artist, but as an advertising man writing art for advertisements.

Facebook, when it began, like Google, was very resistant to advertising. They knew, like all - Mark Zuckerberg, like all good engineers, knew that advertising makes the product worse. But, you know, over time, they've been forced to increase the advertising load more and more and more. And the way they advertise is they - it's subtle but they know everything, you know, about everybody on the site.

Google's AdWords, they allow you to bid on words that people will type into the search engine, and they cost more or less. For example, I think mortgage refinancing can cost - now, it's probably hundreds, maybe thousands of dollars. So, in other words, they are allowing you to bid on what people are going to type, and that is the AdWords program. So you own certain terms, and then your ads show up as opposed to someone else's.

Google - and some of the other sites, YouTube and, you know - Google has an amazing search engine. The map product is incredible. So there's a sort of exchange when you put up with a bunch of ads. Facebook basically gives you access to your friends who, in theory, you had access to already. So sometimes I don't really understand the deal, but I guess it makes it slightly easier. So that's their contribution.

History shows a typical progression of information technologies: from somebody's hobby to somebody's industry; from jury-rigged contraption to slick production marvel; from a freely accessible channel to one strictly controlled by a single corporation or cartel-from open to closed system.

Right now it is illegal for a service provider to censor or block a site because they don't like it or to privilege someone who pays them extra money. So it's basically a level playing field. I think it was a great victory. It doesn't solve all the problems of our time, but I think we've gotten a much better place.