TripleHop Technologies' MatchPoint, Convera's RetrievalWare, and Autonomy's Collaboration and Expertise Networks (CEN) are highlighted in a discussion of the potential advantages of knowledge management (KM) software in libraries. Although not many libraries currently use knowledge management (KM) software, some integrated library systems have been ported to standard SQL RDBMSes, but others are still coded in proprietary languages or multiple languages, and are difficult to integrate with other enterprise systems. Regardless of the system, professional librarians have to deploy and manage modules that integrate conventional technical services functions, including acquisitions, cataloging, circulation, and serials management. Among types of knowledge management (KM) systems that could be used in libraries are advanced search and retrieval software, expertise location and management (ELM), and business intelligence (BI) products. The tools are more flexible, intuitive and full-functioned than many conventional library applications, and should be considered when organizations reevaluate existing systems and processes. Topics covered include evolution in search solutions; expertise location; Databeacon for BI, which allows visitors investigate data behind current news stories; and roles for intermediaries that use KM tools. MatchPoint permits searchers to monitor and filter multiple sources through a combination of keywords and up to 1,000 criteria for complex queries. RetrievalWare is used in multiple leading libraries, including the Royal Library of Sweden.