Collection of OLAP and related disciplines includes documentation and resources on data warehousing and decision support systems.

Includes a directory of vendors, publications, and professional services relating to data warehousing and decision support systems.

Large and extensive repository for finding data warehousing information offers a forum, industry news, papers, and articles.

Knowledge repository of decision support systems information is aimed at IS professionals with sections for developers and researchers.

Foundation is dedicated to developing techniques and tools to support the design and operation of data warehousing. With articles in .pdf format.