Like most things relating to the Internet, the market's reaction to E-marketplaces has been mercurial. During the past two years, 800 to 1,200 online marketplaces have been established—depending on which analyst firm's estimate you use—some, admittedly, in name only. E-marketplaces are proliferating across every major vertical industry, including energy, chemicals, high-tech, bandwidth, maintenance, and financial services, as well as many niche markets. Some industries, such as construction and metals, have 150 or more such marketplaces.
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