This book covers significant recent developments in the field of Intelligent Meth- ods applied to eCommerce. The Intelligent Methods considered are mainly Soft Computing Methods that include fuzzy sets, rough sets, neural networks, evolutionary computations, probabilistic and evidential reasoning, multivalued logic, and related fields. There is not doubt about the relevance of eCommerce in our daily environ- ments and in the work carried out at many research centers throughout the world. The application of AI to Commerce is growing as fast as the computers and net- works are being integrated...