Peter Sisson calls himself a serial entrepreneur, having founded three companies and just launched his fourth. His newest venture, Line2, is a company that hopes to change the way we communicate at work. Think of it as the office version of Skype.

In addition to being a pro at winning money from venture capitalists (Sisson believes there are four things you need to show them), he admits to making mistakes along the way. Wineshopper, his first company, blew up; Sisson remembers burning through $3 million a month before they even had consumers. What did he learn from that failure? Sisson also offers insight on the challenge of being a gay entrepreneur, specifically when it comes to professional bonding and social activities.