Mark Hillenburg is a product manager for Digital Monitoring Products Inc. (DMP), Springfield, Mo., which specializes in the design and manufacture of electronic security products, emphasizing advanced communication over data networks, including the Internet. Prior to his current position, he managed the marketing department. He has worked at DMP for more than 10 years. Raised in Springfield, Mo., Mark attended Drury University, is married and has two children. He can be contacted at mhillenburg@dmp.com.