Research in information systems together reflect inter-and multidisciplinary approach, so that recommends a series of papers at the intersection of data mining and information systems research. This special issue of Annals of Information Systems and extensions contain substantial original paper selected papers from 2007 and 2008 International Conference on Data Mining (DMIN? 07 and DMIN? 08, Las Vegas, NV) which has strict peer-review. Among the suggested topics of interest are: Input data mining; support managerial decision; data applications in marketing, operations management, finance, logistics and supply chain management, data warehousing and business intelligence, document classification and web-usage mining, association rule mining and market basket analysis, security, privacy and the impact of social data mining