Web Directory by Internet-Web-Directory.com

Huge collection of free php scripts - all with demos and direct download link

freshmeat maintains the Web's largest index of Unix and cross-platform open source software. Thousands of applications are meticulously cataloged in the freshmeat database, and links to new code are added daily. Unix and related software in all stages of development. Daily release announcements. Not restricted to open-source software.

A directory of open source software focused on java.

Open Source, Linux News & Software. Directory of open-source and just working programs.

Resources for open-source developers and a directory of in-development open-source software.