Think about what people are doing on Facebook today. They're keeping up with their friends and family, but they're also building an image and identity for themselves, which in a sense is their brand. They're connecting with the audience that they want to connect to. It's almost a disadvantage if you're not on it now.
Facebook is not your friend, it is a surveillance engine.
Twitter and Facebook are such amazing networks for me to introduce myself to the world and for fans around the world to introduce themselves to me.
You can make something big when young that will carry you through life. Look at all the big startups like Microsoft, Apple, Google, Facebook, Twitter, etc. They were all started by very young people who stumbled on something of unseen value. You'll know it when you hit a home run.
Before Google, and long before Facebook, Bezos had realized that the greatest value of an online company lay in the consumer data it collected.