Easley, D. & Kleinberg, J. (2010). Networks, crowds, and markets: Reasoning about a highly connected world. New York: Cambridge University Press. http://www.cs.cornell.edu/home/kleinber/networks-book/
Hanneman, Robert A. and Mark Riddle. (2005). Introduction to social network methods. Riverside, CA: University of California, Riverside http://faculty.ucr.edu/~hanneman/
Anonymous. (2013). Communication Theory.
This book is an introduction to communication theory — the theory of how humans share, encode, and decode what they know, what they need, and what they expect from each other. http://www.oercommons.org/courses/communication-theory/view