For my new projects, I have been using the git revision control system. This page should give you some pointers on how to set up git and access the source code I have available.
Git access over the web is the easiest way, and is available at
https://github.com/AdamMil/.
For *nix users, you may have git installed already, but if not, you can fetch a copy from your distributor or the Git home site. For Windows users, you would probably be interested in TortoiseGit. Recent versions of Visual Studio also have git support built-in.
For the official git client, simply type the following:
git clone https://github.com/AdamMil/MODULEwhere MODULE is the name of the source code module.