Alexis Ohanian — who helped launch Reddit, Hipmunk and is now a partner at Y Combinator — is back as our host, sitting down with these founders to discuss their trials and triumphs. Lat year we focused just on New York, but for this season we're heading across the country — and across the border! Be sure to tune in on Tuesday when we profile PartPic, an early stage Atlanta-based company that is trying to reinvent the way people find and source replacement parts for anything you can imagine.