US Mexican Numismatic Association - An association located in the United States and devoted to Mexican numismatics. - http://www.gmmnut.com/gmm/usmexna.html
American Vecturist Association - Information about the AVA including membership requirements and transportation token collecting. - http://www.vecturist.com
The Colonial Coin Collectors Club - Contains information on joining, reference material, a mission statement, a primer on collecting and a lending library. - http://www.colonialcoins.org/
American Medallic Sculpture Association - Contains information on medallic art, images, a listing of events and exhibitions and membership information. - http://www.amsamedals.org/
The Society of U.S. Pattern Collectors - A collector club for individuals who collect US Patterns. Patterns are prototypes for coins that, for the most part, were never approved for circulation. - http://www.uspatterns.com/
CONECA - National numismatic organization devoted to error and variety collectors. - http://conecaonline.org/
Early American Coppers - EAC is a not-for-profit numismatic specialty organization founded in 1967 to serve as a point of contact for collectors of early U.S. copper coins - Colonials, Half Cents, Large Cents, and Hard Time Tokens - http://www.eacs.org/
Liberty Nickel Collector Society - The premier online club for collectors of Liberty Head Nickels. Complete information from patterns to the famous 1913 Liberty Nickel. - http://www.libertynickels.org/