The decision by News Corp. to dump MySpace once again reveals the risks of over exuberance toward digital companies that do not have a proven business model or long-term customer loyalty. There are plenty of digital investments that meet those requirements, but a number of the most hyped firms moving toward IPOs and acquisitions do not. They need to be considered with hard headed pragmatism. MySpace was launched 2003 and rapidly became the toast of the digital world as a social networking site and “the place” for musical stars and fans to connect. By 2005 it was the fifth most visited site on the Internet. New Corp., which was anxious to benefit from growth in digital media, jumped at the opportunity to acquire the service and paid $580 million in 2005. It was an enormous price for a company with an unclear revenue potential. Within two years MySpace had grown to be the world’s number one social networking site and was receiving 100 million unique monthly visitors. But it still had rev...