For my new projects, I have been using the Subversion revision control system. This page should give you some pointers on how to set up Subversion and access the source code I have available.

Subversion access over the web is the easiest way, and is available at http://svn.adammil.net/.

For *nix users, you may have Subversion installed already, but if not, you can fetch a copy from your distributor or the Subversion home site. For Windows users, you would probably be interested in RapidSVN or AnkhSVN. A list of third-party clients is available here.

For the official subversion client, simply type the following:

svn co svn://svn.adammil.net/MODULE

where MODULE is the name of the source code module.