This piece is a 5-page, 6-source definition of the information technology concept known as "datamining." Datamining is querying large databases and predicting future trends based on statistical analysis, regression, and visualization. The author of this piece describes the tasks involved in datamining as well as some of its methods. The benefits are then discussed, followed by the costs as well as the problems of current implementations. The author concludes by suggesting that as the technology matures, datamining will become an essential part of information technology. 5 pgs. Bibliography lists 6 sources.