 IBM DeveloperWorks: Open Source - http://www.ibm.com/developerworks/opensource IBM's open source site includes articles, tutorials and a list of open source projects. |
 Open-Source Directory - http://www.osdir.com/ Directory of open-source and just working programs. |
 BBC Open Source - http://www.bbc.co.uk/opensource/ Provides information about and links to BBC open source projects. |
 GNU/UNESCO Free Software Directory - http://directory.fsf.org/ Lists free software packages organized and searchable by category. |
 Open Source Scripts - http://www.opensourcescripts.com/ Directory of scripts in various languages (Perl, PHP, JavaScript, ...). |
 My Open Source - http://www.myopensource.org/ A guide to Open Source software for the Windows platform. Lists most popular downloads and offers a review of each product. |
 Java Open Source Software - http://java-source.net A directory of open source software focused on java. |
 Open Source IT - http://www.opensource-it.com Offers a directory dedicated to enterprise grade open source solutions. |
 Webi.org - http://www.webi.org Provides a list of software for Windows organized by categories. |
 SourceWell - http://sourcewell.berlios.de A software announcement and retrieval system which gives updated news on open source software. |
 UNESCO Free Software Portal - http://www.unesco-ci.org/cgi-bin/portals/foss/page.cgi?d=1 A central directory of Open Source software, designed for a worldwide audience. Includes the latest industry news. |
 Foss for Us - http://www.fossfor.us/ Lists free open source software for various platforms sorted by category, allows users to browse by function or by alternative for proprietary products. |
 Open Source Windows - http://opensourcewindows.org/ List of free open source software to perform common functions on a Microsoft Windows platform. |
 Open Source Software Directory - http://www.opensourcesoftwaredirectory.com Provides a list of open source software organized by categories. |
 NASA Open Source Software - http://opensource.arc.nasa.gov/ Lists open source projects that could be essential to NASA missions. Help NASA with development of their projects - or simple enjoy them. |
 Opensourceinfo - http://www.opensourceinfo.org/ A listing of distributions, applications and websites including their features. Includes forums, links and the latest news. |
 Open Source Software in C# (C-Sharp) - http://csharp-source.net/ Directory of open source software focused in C#. |
 OS Reviews - http://www.osreviews.net Website publishing reviews of free and open source software. |
 Goodie Domain Service - http://gd.tuwien.ac.at/ Software, shareware and lots of useful hints to related information. Includes directory, search and associated links. |
 Enterprise Open Source List - http://eoslist.com/ A human edited directory of professional Open Source Software intended for the IT community. |
 Open Source Alternative - http://www.osalt.com/ Helps you find open source alternatives to commercial software. |
 Ohloh - http://www.ohloh.net Provides metrics and analysis on thousands of open source projects and contributors. |