Chairman, Federal Communications Commission
Age: 40
Kevin Martin may be the one man with the power to rein in the giants of the information age. He allowed AT&T to acquire BellSouth, but with strict requirements. Now, he's got the future of digital music in his hands as the commission weighs a satellite-radio merger between XM and Sirius. Age: 40
View all candidates
Tell us who you think matters now -- and why