Setting up shop in a new neighborhood can be a challenge - especially when the laws of physics don't apply. The Golden Rules of Virtual World Marketing.

As chairman of the WPP Group, Martin Sorrell is arguably the biggest and most powerful player on Madison Avenue. With ad agencies such as JWT, Ogilvy & Mather, and Y&R, and media shops like MindShare, Mediaedge:cia, and MediaCom, Sorrell's organization has emerged as the No. 1 buyer of media in the world, purchasing more than $40 billion worth of advertising time and space for its clients in virtually every corner of the planet. But recently, Sorrell took a meeting that left him feeling quite small. It was during a WPP strategic planning session at which Sorrell, a British knight, was …

Pop! Next to Macy's Thanksgiving Day Parade balloon escorts, I can't imagine that sound striking more fear in anyone than this magazine's readers. The last time we heard it - some seven years ago - it was nearly deafening. It was also death-ening.