Database Theory

The Concept-Oriented Portal - Provides information on the concept-oriented paradigm including the next generation concept-oriented database model (CODBM)
http://conceptoriented.com

Database Management Systems - Computer Science course for database management systems. Has information about SQL and Relational Algebra. A Database-I course for graduates of the masters program in computer science
http://myweb.brooklyn.liu.edu/gnarra/database/

Concurrency Control and Recovery in Database Systems - Full Book in PDF-Format available at research.microsoft.com
http://research.microsoft.com/users/philbe/ccontrol/

Database DebunkIing - Dedicated to dispelling fallacies and misconceptions prevailing in the database industry. Find publications, educational information and links.
http://www.dbdebunk.com/index.html

AutoMed Data Integration Project - Documentation and software from the AutoMed project, which provides the first implementation of the both as view approach to data integration
http://www.doc.ic.ac.uk/automed/

Interval Skip Lists - Data structures for finding all intervals that overlap a point, applied to active databases. Research paper and source code.
http://www-pub.cise.ufl.edu/~hanson/IS-lists/

IEEE Computer Society Technical Committee on Data Engineering - A subgroup of the Computer Society concerned with the role of data in the design, development, management and utilization of information systems.
http://www.ccs.neu.edu/groups/IEEE/tcde/index.html

DBWORLD - An ACM SIGMOD discussion email list announcing conferences, jobs, books, software and grants. Posting requires (free) registration.
http://www.cs.wisc.edu/dbworld/

VLDB Endowment Inc. - Very Large Data Base Endowment Inc.: a non-profit organisation for promoting and exchanging scholarly work in databases and related fields.
http://www.vldb.org/

Databases: Past, Present, and Future - Explores how and why databases originated, where they are today, and where they may be headed. Focuses on Relational Database history. <small>(June 13, 2003)</small>
http://www.paragoncorporation.com/ArticleDetail.aspx?ArticleID=20

Data Mining Resources - Data Mining Resources Web Mining Resources Knowledge Discovery Resources
http://www.eruditionhome.com/datamining/

Data Warehousing and OLAP - Papers on data warehousing and online analytical processing available online.
http://www.daniel-lemire.com/OLAP/index.html

ACM SIGMOD Online - ACM's Special Interest Group on Management Of Data.
http://www.sigmod.org/

Data Modelling - Explains the value of data modelling in an application analysis project.
http://www.islandnet.com/~tmc/html/articles/datamodl.htm

Bibliographies on Database Research - Searchable collection of bibtex bibliographies on database research.
http://liinwww.ira.uka.de/bibliography/Database/index.html

Temporal Database Concepts - Defines a wide range of terms and concepts specific to the temporal database research community.
http://www.cs.aau.dk/~csj/Glossary/

DBLP Bibliography - Bibliography primarily focused on DataBase systems and Logic Programming
http://dblp.uni-trier.de/

A free cookbook for sql queries - A free repository for common (and not so common) SQL queries.
http://www.sqlrecipes.com/