The 2013 National Bike Challenge (http://nationalbikechallenge.org) is starting up. I just learned about it today, but it seems like a great cause. It's sponsored by the League of American Bicyclists and Kimberly-Clark (as part of an effort to get employees to commute by bike). And selfishly, I'm happy to be safer as more people decide to ride.
This seems like a great event to help promote on Bicycles.SE. I suggest that this might be a good thing to link to, maybe through a Community Promotion Ad or something. Here's a link for the Guide for Advocacy Organizations:
We could alse consider creating a Bicycles.SE team.