Databases

Database Administration and SQL Scripts - Database design using RDBMS software. Database administrator, software engineering, software articles, scripts and tools.
http://sofbot.com/

Allexperts Database Programming Q&A - Volunteer experts answer your detailed one-on-one questions about database programming.
http://www.allexperts.com/browse.cgi?catLvl=3&catID=1041

XML for Analysis - Resources, news and information on XMLA, MDX, OLE DB for OLAP (ODBO).
http://www.xmlforanalysis.com

Database Directory - Provides short descriptions of the several popular RDBMS. Features various database articles.
http://www.databasedir.com

Connection Strings List - Contains connectionstrings for all types of datasources, databases and files, via ODBC, OLEDB, DataShapes.
http://www.connectionstrings.com/

DaoGen - Generates program source code for DAO classes (Data Access Object). DaoGen is entirely web based service. It supports PHP and Java source code generation.
http://titaniclinux.net/daogen/

MS Access, Excel Database Design Tutorials - Well written and thorough explanations on creating and maintaining database through MS Access and Excel.
http://www.katsueydesignworks.com/databases.cfm

Database Journal - Daily database news and articles for the database professional.
http://www.databasejournal.com/

DevX: Database Development Zone - Portal for database programming, including answers to frequently-asked technical questions about database development, feature articles, links to database development sites, and news about database tools and updates.
http://www.devx.com/dbzone/

Database Design Guide - This article provides an overview of the most important steps on database design. It explains a wide range of design issues, code samples included.
http://www.smart-it-consulting.com/database/progress-database-design-guide/

Recognized Standards for Databases - Listed standards for database architectures including SQL, OLE, COM,CORBA. Links to DB Special Interest Groups and organizations too.
http://www-ccs.cs.umass.edu/db/organizations.html

About.com: Database Development - Provides original feature articles, a collection of net links, forum discussions and a chat room devoted to database programming. By About.com, Inc.
http://databases.about.com/od/development/Database_Development.htm

Database Design Software - A multi vendor, cross platform database design tool for creating ERDs, building SQL queries, and round-trip engineering databases.
http://www.dbwrench.com

SQL-RDMBS HOW-TO for Linux (PostgreSQL Object Relational Database System) - Discussing database development on Linx (Database Servers, Front-end GUIs, Rapid Application Development tools, ODBC, JDBC, C, C++, Java, Perl); and useful reference guide with many links to related websites.
http://www.yolinux.com/HOWTO/PostgreSQL-HOWTO.html