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.
Tim WuEvery time you click on a like button on another site, you've told Facebook that you're doing that. And so therefore advertisers know who their fan base is.
Tim WuThe Holy Grail of advertising has always been advertisement that people want to watch, which occasionally happens. You know, the Super Bowl, people sit there and watch the advertisements. Some print advertising is very beautiful.
Tim Wu