10 Fascinating Facts About U.S. Currency
http://www.walletpop.com/blog/2010/11/23/10-fascinating-facts-about-u-s-currency/
Heritage Income Tax Service, Inc.
Income Tax Preparation Service You Can Count On
http://www.walletpop.com/blog/2010/11/23/10-fascinating-facts-about-u-s-currency/