This is the fifteenth episode of Hack To Start. Your hosts, Franco Varriano (on Twitter @ FrancoVarriano) and Tyler Copeland (on Twitter @ TylerCopeland), speak with Greg Isenberg(on Twitter @ GregIsenberg), the founder and CEO of 5By about building products, investing, and the value of networks and partnerships. Greg is from Montreal, Canada and has been building products since he was 13. By the age of 25, he'd already sold 3 companies and been angel investing for over a year. He'd also built major social campaigns for brands like FedEX, NASCAR, TechCrunch & Wordpress. His most recent company is 5By, the best place to find, watch and share amazing videos, now acquired by StumbleUpon.