We have selected CoinFacts as the world's very best website on American Coins.
The CoinFacts website is published by the Professional Coin Grading Service, of Newport Beach, California, USA. The CoinFacts website lists more than a hundred US coins, giving illustrations and information about each. There is a section on valuing coins, and an introduction to numismatics (the study of coins).
The CoinFacts website contains a glossary of numismatic terms, including Abrasion, Alloys, Artificial Toning, and Attribution. There is also a 'Cool Coins' tour, with information on the most valuable and famous US coins. There is a section giving a chronological history of the US Mint.