The sifting of the B2B online exchange industry has begun with a string of critical reviews from various groups. All, it seems, predict large-scale consolidation of the exchanges, and many say most exchanges offer little long-term value to participants. One of the latest reports comes from the Tempe, Ariz.-based Center for Advanced Purchasing Studies (CAPS), which worked with consultants McKinsey & Co. to review 1,000 B2B marketplaces (or "e-marketplaces"), survey 300 such sites, and conduct in-depth interviews with executives at 50 sites that were cited by users as leaders in 12 major industries. Interviews with major B2B customers also took place during the research period -- June to September 2000. Major conclusions of the research include: