Alan's Marble Connection--one stop shopping and more for marble collectors
The Internet's largest source of marbles, with over 500 marbles and more for sale, in addition to a marble message board, a marble club, an identification guide, and much more.
www.marblealan.com/   reviews

Marble Museum Home Page
Marble Museum, Marble Collector's Web Site, Home Page ...
www.marblemuseum.org/   reviews

National Marbles Tournament
The National Marbles Tournament is an annual event held in Wildwood NJ. It is open to children and young adults who win a sanctioned local tournament and are under the age of 15.
www.nationalmarblestournament.org/   reviews