Every January, Ink World publishes our annual US Ink Directory, a comprehensive listing detailing more than 190 US ink manufacturers, ranging from major manufacturers who supply a full complement of inks to specialists who successfully focus on niches. As always, new companies appear while others close their doors, either through consolidation or by retiring from the industry. Changes become even clearer when you look back into the past. I spent some time looking though the 2007 US Ink Direct...