How to make money from screenwriting

There are so many ways to describe content these days. The internet has paved the way for groups of people to build a brand and business around their passions. Gary Vaynerchuck was one of the first to talk about it in mainstream media and to readers around the world with his book Crush It. He shows you how to use the power of the Internet to turn your real interests into real businesses. His book was written in 2009, and the concept has gone global with the rise of multiple social media platforms bringing attention from users and consumers. So how do you benefit from it all as a screenwriter?