Some of the folks that are signing up for Bikes of Hibernation and Bike The Bridge said they were having issues signing up. The issue has been that after they volunteer, they receive a message that "Un-Signups" them. Rick Nevins and I have tested the sign-up function but can't seem to replicate the error. One of the possible reasons, may be that you're double clicking when you're signing up. So I would suggest clicking once and waiting for the screen to refresh. If you're still having problems, then email me the position you want to signup for and I'll manually add you.
BOoH and Bike The Bridge Sign-Up Issues