This document discusses electronic marketplaces and their impact on business. It defines e-marketplaces and their key components. It describes different types of electronic markets like electronic storefronts, e-malls, and private, public, and consortia e-marketplaces. It also discusses intermediaries in e-commerce and mechanisms like electronic catalogs, auctions, bartering, and mobile commerce. Finally, it covers factors for e-marketplace success and the economic and organizational impacts of e-commerce.