Kara Swisher

My telephone manners were, well, offensive to some. As I lugged my cell around, yammering away, I noticed cold stares from passersby who viewed me as a kind of techno-terrorist, or at least incredibly rude.

Unlike the messier MySpace, Facebook has a cleaner and easier-to-customize interface and is much more, as Zuckerberg once described it to me, 'utilitarian.' I would call it useful and more relevant than other competitors, and a white-label version would likely be a hit.

Social enables word of mouth at an unprecedented scale. Its most powerful effect, through reviews and recommendations, is to put product quality and value for money as the key to success in commerce. Social brings a level of transparency that prevents marketers from advertising their way to success without underlying product quality.

Every time you log in to Facebook, every time you click on your News Feed, every time you Like a photo, every time you send anything via Messenger, you add another data point to the galaxy they already have regarding you and your behavior.