Onedollarbill.org

From Wikidweb

The Dollar Bill Collector

Description: This site is all about collecting United States one dollar bills with an emphasis on fun, education and entertainment. It has information that would be useful to the collector of United States paper money (or banknotes) including an explaination of Federal Reserve Bank codes, serial numbers, and how people build collections.
--http://www.onedollarbill.org