The singer-turned-actor, who played entrepreneur Sean Parker in The Social Network, participated in early rounds of fund-raising for the photo-sharing service Stipple and Miso Media, a maker of music education software. But Timberlake made headlines last summer when it was announced he was part of a group who bought the floundering MySpace from News Corp. for $35 million.
Great ideas are hard to come by. Putting them to work is even harder. Meet the founders who turned concepts into companies and changed the face of business.
