On the heels information integration and interoperability, this book discusses the information brokering the next step in information interoperability and integration. Infrastructure that identifies trade-offs in performance and scalability optimization web site will soon give way to trade off-based information as an alternative rationalization schemes come into play and the need for interoperating in this scheme is realized. Information Brokering in Digital Data heterogeneous reader is referred to the researcher, software architect and CTO, developer of sophisticated products dealing with issues of information intermediation in the context of e-commerce (B2B and B2C), information technology professionals in various vertical markets (eg, geo-spatial information, medical, auto), and all librarians interested in information brokerage.