Michael S. Greenberg holds a BA from Hampshire College in Computer Science. He worked, both formally and informally, with the late Calvin Mooers on the TRAC language and mobile intelligent agents from the early 1980's until Calvin's death a couple of years ago. Concurrently he worked as a software engineer and consultant on industrial projects ranging from control systems and instrumentation to network systems and utilities. He has taught LISP at the Computer Science Departments of Hampshire College and the University of Massachussetts. He is the Chief Architect of the Intelligent Agent Group at FTP Software, Inc.