Mark Granovetter. Mark Granovetter (born October 20, 1943) is an American sociologist and professor at Stanford University[1] who has created theories in modern sociology since the 1970s.
He is best known for his work in social network theory and in economic sociology, particularly his theory on the spread of information in social networks known as "The Strength of Weak Ties" (1973).[2] Background[edit] Granovetter earned an A.B. in History at Princeton University (1965) and a Ph.D in Sociology at Harvard University (1970). 100 Best YouTube Videos for Teachers. We Are Scientists. The Periodic Table of Videos - University of Nottingham.