We (The Error - Variety Education Consortium) have opened a new site concerning cuds and other types of die breaks. This is a continuation of Margolis' and Thurman's work. The site is called Cuds-on-coins.com and is a free informational site with color images.

Cuds-on-coins is designed to be a comprehensive visual database encompassing a wide range of die errors caused by brittle failure. However, its primary focus is “cuds”. A cud is a marginal die break; an error produced when a piece breaks off the edge of a die. Previous attempts to classify cuds managed to capture only a fraction of the thousands of cuds represented in the marketplace. This site will attempt to extend coverage beyond the two existing catalogs, The Cud Book and The Cud Book Supplement.