Figure S1 One of the more eye-catching examples is this billboard ad for underwear (photo by author, July 2011)

Figure S2 One of the author's recent favorites — the arm-wrestling men and the women behind them depict both virility and sensuality (photo by author, July 2011)

Figure S3 Image modified by author from Google Map — dots indicate billboard cluster placements along C-5 in one of the areas with high concentrations (Image © 2009 Digital Globe, © 2009 Google)

Figure S4 Composite image of billboards (photos by author, May 2009)

Figure S5 Not all billboards are outrageous displays of skin and sexuality! This one advertising a shop for eyeglasses manages to be quite humorous (photo by author, July 2011)

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