The Institute for Scientific Information (ISI) was founded in 1960 by Eugene Garfield to provide bibliographic database services and citation indexing to scientists. ISI was acquired by Thomson Scientific & Healthcare in 1992 and is now part of the Intellectual Property & Science business of Thomson Reuters. ISI maintains citation databases covering thousands of academic journals and produces yearly citation indexes and journal impact factors to help researchers identify influential publications. Its products include the Science Citation Index, Social Science Citation Index, and Arts & Humanities Citation Index.