Visit US ON FACEBOOK:
www.facebook.com/groups/BuddhistsforChangePDX/
Buddhists for Change is also a Facebook group!
Facebook now has a feature that allows people to create "event" pages and share them, so it tends to be a good place to learn about upcoming opportunities and share the information with other Buddhists.
If you want to belong to the Facebook group as well as the Google email group, simply visit the Buddhists for Change PDX Facebook group page and ask to join.