This group is for those interested in bicycling in Piedmont. I'm one of the co-chairs of Piedmont Connect, a volunteer organization working to connect people interested in local environmental initiatives in Piedmont. I'm also a daily bike commuter to Downtown Oakland.
You can sign up for Connect's mailing list for green transportation, which includes bicycling, by going to www.piedmontconnect.org and clicking on "Transportation Group" and then on the sign-up link that appears on the Green Transportation page.
I also recommend that you email City Planner Kate Black, kblack@ci.piedmont.ca.us, and ask to be put on the notification list for the forthcoming bicycle and pedestrian master plan, for which the City applied for grant funding from the Alameda County Transportation Commission.