1. www.dkm.no/engelsk for information on joint Norweigan-Canadian Viking Memorial Coin.
2. www.artoday.com for great graphics.
3. www.usmint.gov for Did You Know facts, and information for our Cool Coin Quiz.
4. www.unicover.com/ for information on China's 1999 Panda Coin, and information for The Total Eclipse of the Sun Coin.
Printed Materials Part of a book
1. The Story of Coins By:Sam Rosenfeld, Publisher: Harvey House Inc. Copyright Date:1968. Page 16-17 and pages 35-40; for information for the History of Currency page.