Want to become a billionaire? Then you should try building one of the following seven companies, says Y-Combinator founder Paul Graham.
Graham knows a thing or two about building companies. Y-Combinator is a startup school that helps young entrepreneurs get their companies rolling. He's seeing thousands of applications to Y-Combinator annually, so he knows what people are trying to build.
To read the full, original article click on this link: Paul Graham's Advice For Startups
