Check out books form the library written about the Puritans. Consider putting together a book study so you can get together with others and learn about the Puritans.
Check with your local college. Read their class schedule and see if there are any classes offered about the Puritans.
Call local churches and ask if there are small groups offered that teach about the Puritans. If there aren't any groups, ask if one can be formed.
Go to a search engine and type in "Puritan" and locate reputable research information. Look for articles written by professors, researchers and educational institutions.