Despite the tough environment dot-com firms are facing, electronic business-to-business (B2B) marketplaces are becoming an important and growing part of electronic commerce. An important question in the context of electronic B2B marketplaces concerns the ownership structure of B2B marketplaces. At the advent of electronic B2B marketplaces, ìneutral marketplaces,î independent of buyers and suppliers, were commonplace. Later, incumbent companies (suppliers or buyers) came together to create ìbiased marketplaces.î