Ever since January 1997, when Ink World published the U.S. Ink Directory, the first and only such listing of U.S. ink manufacturers, we have always kept a close ear to the industry. Since then, we have annually updated our directory, keeping our readers up to date on the changes occurring within the printing ink industry. As a result, the U.S. Ink Directory has become one of our most popular features. There is a lot of research that goes into our U.S. Ink Directory. Information is gathered thro...