This guide to Web-based procurement covers a variety of models, including sell-side, buyer-managed, vertical and horizontal markets, ASPs, and auctions. It also discusses the technology involved, strategy, standards, structure, change management, the role of integrators and consultants, approaches, and risks. The book provides a counter-balance to the usual emphasis on e-commerce (electronic retailing). Neef is a management consultant. Annotation c. Book News, Inc., Portland, OR (booknews.com)