The galaxy community now has a mailing list dedicated to proteomics. If you're using galaxy to do proteomics, or if you are thinking of doing so then this list if for you.
In case you missed it, there is also a proteomics wiki page at http://wiki.galaxyproject.org/Proteomics
To subscribe to the galaxy-proteomics list please add your email address to the list here: http://lists.bx.psu.edu/listinfo/galaxy-proteomics
See http://wiki.g2.bx.psu.edu/Mailing%20Lists for more information on this and other Galaxy mailing lists, including links to searchable archives of all Galaxy lists.
Many thanks to Dave C. and the Galaxy team for setting this up.