Quoting IT: Mark Shuttleworth, Ubuntu Linux

"In the digital world, I think we have the inverse effect, where something that is shared can become more valuable than something that is closely held, as long as it is both shared and contributed to by everybody who is sharing in it."

- Mark Shuttleworth, Founder of Ubuntu Linux; Excerpt from "The Grill: Mark Shuttleworth", Computerworld, June 11, 2007