Group Riding Basics from the Motorcycle Safety Foundation:
MSF Mission Statement: To make motorcycling safer and more enjoyable by ensuring access to lifelong quality education and training for current and prospective riders, and by advocating a safer riding environment.
The MMA is a group of bikers who advocate for motorcyclists' rights and safety.
Looking to get your license? This is a great place to get started. They use an excellent curriculum developed by the MSF.
Boston Harley, located in Revere, MA, also offers a great licensure course using the same curriculum developed by the MSF.