This page is for all those tools that don't have a convenient category.

Source Control

CVS
The defacto standard for open source projects
Subversion
The soon to be defacto standard for open source projects.  Subversion adds global commit numbers, versioning of directory operations, and is based on the Apache 2.0 infrastructure
BitKeeper
The gold standard of source control systems.  If they would open-source this, they'd rule the world.
Arch
Arch is another interesting source controls system.  The only problem is that its a bunch of bourne shell scripts, so Windows users are out.