Advertising Industry in the Digital Age (Suzanne M. Kirchhoff, 2011) and 2009.
A Comparison of Three Interactive Television Ad Format (Steven Bellman, Anika Schweda, and Duane Varan, 2009)
When advertising goes digital (Comscore, 2010)
Understanding the Economics of Digital Compared to Traditional Advertising and Media Services (Joe Burton, 2009)