From the reviews: "This edited book is an early attempt by primarily European researchers to harness and expand the use of grid technologies in accessing distributed sources for sharing, and also to extract and produce knowledge. ... Overall, the book is well organized and the selected material represents a very interesting range of topics. The expected audience is academics with interests in distributed systems and databases, or grid practitioners who are interested in extending grid technologies to knowledge extraction management and data manipulation." (George Dimitoglou, Computing Reviews, January, 2008)