Make Your Open Source Software GPL-Compatible. Or Else.
This essay argues that developers of open source software / Free Software (OSS/FS) should use an existing widely-used license compatible with the General Public License (GPL), such as the GPL, LGPL, MIT/X, or BSD-new licenses

Network Theory Ltd: An Introduction to GCC
Network Theory Ltd: Comparing and Merging Files with GNU diff and patch
Network Theory Ltd: Version Management with CVS
Dirk Vermeir Free Software Manuals/Tutorials

Google Code: Google’s place for Open Source software.

BusinessWeek coverstory:
Linux Inc.
Quote from the article:

“Cooperating gets you further along than screwing your neighbor.”
[...]

Search Keys extension for Firefox
Search Keys lets you go to search results by pressing the number of the search result instead of clicking. For example, pressing 1 takes you to the first result. Hold Alt (Windows/Mac) or Ctrl (Linux) to open results in new tabs, or Shift to open results in new windows.
Search Keys supports [...]

Unbending the Truth Things Microsoft Hopes You Won’t Notice:
Recently Microsoft has been challenging the suitability of Linux for the enterprise, bending the truth quite a bit to make it fit their view of the world. This site is dedicated to unbending the truth and setting the record straight. Take the time to explore the [...]

Free Software Magazine is the free magazine for the free software world, available on paper and in electronic format.

Contributing to Open Source Projects HOWTO This page is aimed at programmers new to the Open Source / Free Software world, who want to make a contribution, but aren’t sure where to start.