see also: site background/admin
The DIG virtual office is an IRC channel. #mindswap is next door.
The mailing list is paw-team which is archived, but not publicly.
The PAW materials are in a subversion respository. One way to start working with it is:
svn doesn't do keywords by default; you have to turn them on; see the keywords section of the svn book.
Emacs integration: vc-svn.el allows all the VC tricks (C-x v = for diff, ...) to work with subversion. It's included in the debian subversion package in /usr/share/emacs/site-lisp/. It integrates more smoothly than psvn.el from XSteve's emacs stuff.