Many collectors enjoy interacting with others who share the same interest as themselves. Joining a club, going to a show, or chatting with other collectors: All vastly improve your knowledge of the hobby, and offer you innumerable opportunities to expand your collection and prune out the items you no longer want. This area offers a full spectrum of community related features.
Marble Collectors Society of America
Marble Show Calendar
There are a number of clubs active around the country. Some even have monthly meetings! A listing of marble clubs.
Think you can beat a teenager at a game of marbles? Marble tournaments around the world.
Have damaged marbles that you want polished up? These are the guys!
Other Marble Links
Other marble sites that you might find interesting.