www.dbforums.com

dBforums is a discussion forum and helpdesk for database design, development and administration issues.

A forum dedicated to discussing database issues. This site covers all database types.

forums.devshed.com

Welcome to devshed, a community dedicated to spreading the the spirit of open source to beginner and professionals alike.

A forums for programmers covering php, apache, mysql, jserv,  python, roxen, zend, zope, ftp, java, postgresql, linux ...

www.w3schools.com

At W3Schools you will find all the Web-building tutorials you need, from basic HTML and XHTML to advanced XML, SQL, Database, Multimedia and WAP.

www.tizag.com

Syntax descriptions for PHP, HTML and CSS. Easy to use and understand. Also tutorials on the variuos languages.