I would like to offer a few suggestions to collectors visiting my site regarding other destinations on the Web which they might like to explore.
The American Numismatic Society
The American Numismatic Society in New York is an academic institution of the first caliber, with excellent educational programs and a magnificent collection of numismatic material, much of which is published in the ANS series of the Sylloge Nummorum Graecorum. They may be visited at their Web site http://www.numismatics.org. Another site maintained by the ANS is that of the International Numismatic Commission which contains, amongst numerous other features, a list of member institutions, histories of collections, information regarding antiquities laws in various countries, and obituaries of distinguished numismatists. This fascinating site may be accessed at http://www.inc-cin.org.
American Numismatic Association
Aimed more at the collector of U.S. coins is the American Numismatic Association based in Colorado Springs. The ANA publishes the monthly magazine "The Numismatist" and this does have features and advertisements relating to ancients (including my own bimonthly column "Presents from the Past"). Why not pay them a call at http://www.money.org.
For those who would like to venture overseas in their quest for information you might care to try the site of "Britain's biggest-selling Coin Magazine" Coin News, published by Token Publishing Ltd. of Honiton, Devon, and edited by John Mussell. Although the emphasis is on English coinage there are regular articles on ancients as well as other series, and this quality publication provides a fascinating insight into the British coin scene. Visit John on his Web site at http://www.coin-news.com.
Ancient Coin Collectors Guild
The Ancient Coin Collectors Guild is a non-profit organization committed to promoting the free and independent collecting of coins from antiquity. http://www.accg.us.