Heilbroner, R. (1967) “Do Machines Make History?”. Technology and Culture, Vol. 8, No. 3, 335. PDF

Marx, Leo. 1997. "Technology: The Emergence of a Hazardous Concept". Social Research, Vol. 64, No. 3. Note: the version in your reader is pretty messy, so we recommend you just read it online here:  LINK

Rosen, P. (1993) “The Social Construction of Mountain Bikes: Technology and Postmodernity in the Cycle Industry”. Social Studies of Science, Vol. 23, No. 3 479-513. PDF