The Coast Guard's Boating Safety Circular is no longer going to be
post office mailed. The Coast Guard's Office of Boating Safety
web site is www.uscgboating.org.
Comprehensive online boating, fishing and water sports directory for
Boston and New England. Web site development and hosting for marine
MA boating info on boat launch sites, licensing, and permits
A comprehensive list of links for Massachusetts' boater resources.
Many links of interest here.