He has served a wide range of corporations and service firms, including Toshiba; Sony; Spencer Stuart, a global executive recruiting firm; KPMG Peat Marwick and Coopers & Lybrand, accounting firms; The Home Depot; Deere & Co.; CIT and Commercial Credit Corporations, asset-based lenders; AlixPartners, a turnaround firm; Monsterboard, the largest job-related Web site; SETONWORLDWIDE, a web site delivering online postgraduate degree programs; Porsche Cars North America, importer and distributor of Porsche sports cars; Dean Witter, a brokerage firm; Castle Harlan, a private equity firm; Veridian and CACI, government IT contracting and network security firms, Hughes Communications, a satellite company and Major League Baseball.

He has written extensively on the use of technology and the Internet for better, faster and less-expensive client service. He has developed data and knowledge bases to support public relations activities and analytical techniques to enhance client service. He blogs at http://online-pr.blogspot.com/ and has a Twitter handle of @jamlhorton.