Founded in 2007 by entrepreneur Jon Bischke, San Francisco-based startup eduFire offers low-cost live lessons via video conferences and text chats — at $29 a month for unlimited access, reports CNNMoney.com. There are up to 200 classes per day, covering everything from conversational Spanish to the history of Iran. Students with similar interests can chat via video and text for free. That, Bischke and his five employees say, is where much of the learning happens. So far, EduFire has attracted more than 50,000 registered users. Sign up is free; members who choose to take classes can either pay per class or pay $29 a month for unlimited access. About 10,000 users have taken a class in 2009. "This model flips education on its head," Bischke says. "Most brick-and-mortar colleges and universities pay teachers only 15 percent of all revenues. We’re giving ours 85 percent."