Magazines and Newsletter:

• Application Development Trends Magazine
• Business Intelligence Magazine Online
• CIO MagazineComputerworld 
• The Data Administration Newsletter (TDAN) 
• DataToKnowledge Newsletter (formerly Data Base Newsletter)
• DM Review Magazine 
• Database Trends and Applications 
• Datamation Magazine 
• The Enterprise Newsletter (TEN)
• Information Impact - "The Information Newsletter"
• Information Week Online
• InfoWorld
• Intelligent Enterprise Magazine
• Interactive Week
• Journal of Conceptual Modeling 
• KM (Knowledge Management) World
• Oracle Magazine
• Real World Decision Support 
• Technology Review Magazine
• Wired Magazine
• ZDNet Network News, publisher of various computer magazines

Other content-rich sites:

• DIPM Institute - definitions/explanations of data quality, warehousing, OLAP, performance, functional domains, repositories, etc.
• Applied Analytics - articles and papers on Statistics, Neural Nets, Multivariate Analysis, etc.
• The Business Rules Website from Business Rules Solutions, LLC
• Computer Information Centre on data warehousing / OLAP / EIS
• Cutter Consortium
• The Data Management Center
• The Data Mining Institute (a bit dated now, last updated 1996)
• Data Mining by Information Discovery, Inc.
• The Datawarehouse.Com Resource Page
• The Data Warehousing Knowledge Center
• The Data Warehousing Institute white papers and case studies
• Dataspace Consulting resources page
• Data Warehousing Online
• Enterprise Architecture
• Enterprise Database Concepts, Objects, and Methodology on DBStuff.com
• Enterprise Warehousing Solutions
• Federal Information Processing Standards (FIPS) Index
• Intelligent Solutions data warehousing resource page
• Information Engineering white papers and articles from IES Pty Ltd
• Intellibusiness.Com
• Intervista Institute - Training and more. Download a pdf of the Zachman Framework for Enterprise Architecture Poster
• itmWEB (Information Technology Management WEB) - a portal site devoted to information mgt technologies
• ITtoolbox Portal for Data Warehousing portal for data warehouse professionals - discussion forums, news, more
• Gartner Group "News and Views"
• Metadata Standards
• Nautilus Systems Data Mining company
• Project Muse - hundreds of online academic journals
• SearchDatabase.com Free portal devoted to the administration and development of enterprise database management systems
• Standards and Standardization Organization Database maintained by ISO
• Tech Guides from Applied Technologies Group
• Techie Index - Business Intelligence - A Portal for BI, user groups, white papers, more
• "Toward an Organic View of Data Administration" by Eric Rawlins
• Universal Data Models Len Silverston's website
• University of Pennsylvania Data Administration
• VLDB Survey by Winter Corporation
• Whitemarsh Information Systems books, courses, workshops, training, data management, more
• XML Standards updates on all the latest in XML 
• Zachman International, Zachman Framework2, articles, press releases, EA resources

Employment info: Content-rich sites useful to professionals changing employment positions:

• DAMA's Career Center
• The Computer Consultant's Resource Page 
• Data Mining Jobs.Com
• DataMasters salary surveys, cost of living comparisons, etc. 
• DBAJobs.com 
• JobsMart salary surveys 
• MonsterBoard resume database, etc. 
• SoftwareJobs.Com

Resource pages provided by DAMA chapters:

• Chicago (links)
• Toronto (links)

Homepages of notable individuals:

• Peter Aiken
• Michael H. Brackett 
• Dr. Peter Chen
• Larry English 
• Clive Finkelstein 
• Michael Gorman
• Douglas Hackney
• David Hay
• Claudia Imhoff 
• Ralph Kimball 
• Terry Moriarty
• Len Silverston
• Graeme Simsion
• John Zachman