Never mind that the images were fuzzy and jumpy. An estimated 1.5 million to 2 million surfers clicked on to the live Webcast of the Victoria's Secret annual fashion show last week, eager to watch supermodels Tyra Banks, Heidi Klum and Stephanie Seymour strut their teeny bikinis. Heavy traffic (with heavy breathing) on the company's Web site caused major delays, but it wasn't the first time virtual voyeurs have breached the limits of real-time Webcasts. Americans swarmed to their computer screens during the Pathfinder mission to Mars, a live birth by a woman in Florida and the transfer of Keiko the whale to a sea pen in Iceland. But nothing compares with the explosion of hits around the globe (34 million in one day on CNN's Web site alone) when the Starr Report was released in September. In the world of online ogling, one truth is already self-evident: from Monica to Victoria, the thong's the thing.