The brash Mark Cuban, who sold his Internet-video company Broadcast.com to Yahoo at the peak of the '90s bubble, has found old-media fame on ABC's "Dancing with the Stars." His star turn — which, of course, he promoted on his blog — was both charming and cheesy. Okay, he hardly pushed himself on the dance floor, but he looked suave in brown coattails, grinned the whole time, and exhibited a cunning use of jazz hands. Despite our misgivings, Cuban won our vote.