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About.com on SQL
http://databases.about.com/compute/databases/cs/sql/index.htm
Provides original feature articles, links, forum discussions and a chat room.
DevLibrary - SQL
http://devlib.virtualave.net/sql1.html
Links to Tutorials and documents.
FindTutorials.com
http://tutorials.findtutorials.com/index/category/21
Database of free SQL tutorials available on the internet.
Free Sample Chapters and tutorials from SQL Server
http://www.geocities.com/honeykrishnan/samplechapterssql.htm
Some sample chapters and sql tutorials from different SQL server books available on the net in HTML and PDF formats.