1949-1950 Laboratory Chemist, Evans Research & Development Corp. 1950-1951 Research Chemist, Columbia University 1951-1953 Staff member, Welch Machine Indexing Project, Johns Hopkins University 1954-1960 President, Eugene Garfield Associates 1960-1992 President & CEO, Institute for Scientific Information 1986-2000 Publisher & Editor-in-Chief, The Scientist 1992-1992 Chairman, Institute for Scientific Information 1993- Chairman Emeritus,Institute for Scientific Information 1998-2000 President, ASIS&T (American Society for Information Science & Technology) 2001- President, The Scientist LLC.