Critical Mass Fort Lauderdale Is Happening Tonight: Here's How to Join the Ride and Avoid Trouble | New Times Broward-Palm Beach

This went off last night in Broward County, as did one in West Palm Beach. Both happen on the last Friday of the month. There has been some controversy and "dust ups" with previous events like this, but it sounds as if things are getting under control now. I understand that there is one in Lake Worth coming up this Friday so stay tuned for more information. Click title for link. From the article:

The important thing to remember is that this isn't a race, nor is it a gathering to rail against the man. [emphasis added]
It's a bike ride with lots of people who love bike riding and who want to promote and celebrate bike riding safety. [emphasis added] Critical Masses are about promoting safety, particularly in South Florida, where bike accidents happen pretty frequently and where drivers and cyclists have a history of not liking each other very much.
So, it's important to keep in mind that there are rules involved [emphasis added] in being a part of the fun.
Some of the key rules -- outside of basic common sense -- include not overriding the group by sticking to the pace, wearing no headphones, making sure your bike has the proper safety lights (per Florida law), communicating with your fellow riders (if you're gonna pass someone, give them a holler), and if you need to stop for any reason, making sure you pull off away from the rest of the cyclists.