Links to the Numismatic Clubs that I belong to:
American Numismatic Association (ANA)
Fractional Currency Collectors Board (FCCB)
Liberty Seated Collectors Club(LSCC)
Double Dimes – The United States Twenty Cent Piece Web Book
Orca Rarities where you can order the book on United States Proof Coins Volume II: Nickel
So-Called Dollar Collector’s web site