YouTube is nurturing the next generation of media 'stars'— a collection of talent with huge followings producing content unlike anything else in the traditional media world. And the company is actively trying to foster more talent. Some of these folks are making a living on YouTube. Others have already cut their teeth in TV, and are looking to conquer the Web. And some are struggling to get discovered, while still doing something else to pay the bills. Here are a few YouTubers Adweek recently spent time with.