For the Mozilla Service Week on Idealist.org, D-Tree and other oganizations have some virtual volunteer positions [help out without having to travel] available. The two I know about from D-Tree are:
Web Developer: http://www.idealist.org/if/mozservice09/en/av/VolunteerOpportunity/176680-26/c Java/XML Expert / XForm Developer http://www.idealist.org/if/mozservice09/en/av/VolunteerOpportunity/176568-256/c Pass along to anyone who might be interested. Seems like a good fit for people who want to get involved but can't commit to major travel just yet. Brian