Usama Fayyad presents a paradoxical technical and business dilemma: an over-abundance of data with limited ability to utilize or mine the vital information. Data mining—a technology few organizations have been successful in managing—is discussed on several levels: algorithms for scaling to large databases, aspects and challenges for fitting data mining with database systems, and finally the challenges of how to make the technology really work for e-business. From the Series:CSE Colloquia - 2002