Most people have never walked down the street and looked for homeless people before -- most look the other way. But not Mark Horvath. A former Hollywood insider, Horvath has been a drug addict, con artist and, for a brief period, homeless. He says he's left that life behind, and these days, he's drawing on his past to inspire his Web site -- Invisiblepeople.tv. The site is a collection of YouTube-length video profiles of homeless people he's met across the country, and it's become a surprise hit in social media circles. Horvath heads down Hollywood's Walk of Fame, looking for homeless people. When he finds someone, he reaches into an overstuffed backpack and pulls out a bag of fresh white socks. Nearly everyone takes a pair. And when they do, Horvath pulls out a video camera and asks if he can interview them.
