| http://digfir-published.macmillanusa.com/mediaessentials2e/mediaessentials2e_part1_1.html | Part 1: Mass Media Industries | 51d4a1c1b62f8b395400000b |
| http://digfir-published.macmillanusa.com/mediaessentials2e/mediaessentials2e_part1_1_dlap.xml | DLAP questions | 51d4a1c1b62f8b395400000b |