From OpenBRR

Introduction

There are several open source groups/coalitions that collectively create software together. Each group usually have a certain niche, a certain tools, and often a certain culture. Once you are familiar with the way a group organizes itself, it is a lot easier for you to find your way around there.

Some bigger (and usually older) projects are done independent of these silos. They are also listed below

OSS Silos

Some of the silos are listed here:

Apache Foundation

• Very highly regarded as producers of good OSS.
• Meritocracy is highly adopted.
• Initially the foundation was created to become the umbrella of Apache Webserver development efforts. Now it is an umbrella of many open source projects (usually pertaining to web technology).
• Each project has one project site.
• All projects use Apache License.
• Usually bug repository is done with Bugzilla, although sometime Jira is used.
• All communication and decisions are done through mailing lists. All mailing lists are archived.

Mozilla Foundation

• Very highly regarded as producers of good OSS.
• Meritocracy is highly addopted.
• Development house of Mozilla suite, Firefox, Thunderbird, Sunbird, Camino, Seamonkey and Bugzilla.
• Most projects are platform independent.
• All bugs management are done through Bugzilla.

SourceForge

• The house of over 100K projects, ranging from project embryos to mature ones.
• Often becoming a second house of many projects started independently.
• Both forums and mailing lists are often used. They are automatically archived.
• Source Code control is cvs, annnymous checkout is available.

CodeHaus

freshmeat.net

Tigris

Java.net

Savannah (GNU and non GNU)

pgFoundry

• Projects surrounding PostgreSQL

Perl CPAN

• Source Code and package repositories for 8K+ Perl bundles.
• No bug database.
• Most (all?) packages can be installed using standard procedures.
• Most packages include test codes.

PHP Pear and PECL

• Official PHP add-on repositories.

Independent OSS projects

Linux Kernel