Meeker predicts fallout in b-to-b e-commerce;Morgan stanley maven says failure ahead for firms...

Wall Street's Web maven thinks b-to-b e-commerce is a swell industry but that many of its players will flop.

Morgan Stanley Dean Witter & Co. Internet analyst Mary Meeker said in a new report that her company is optimistic about b-to-b e-commerce's overall future. But look closer, she warns.

"Many B2B business models look suspect and most probably will fail," writes Meeker in "The B2B Internet Report: collaborative commerce."

Too many exchanges are choking the b-to-b marketplace, and they won't ever eliminate the need for bricks-and-mortar innovat