| Arbitron, Inc. |
www.arbitron.com |
| Nielsen Media Research |
www.nielsenmedia.com |
| Advertising Media Internet Center |
www.amic.com |
| RadioInfo |
www.radioinfo.com |
| SRDS |
www.srds.com |
| Outdoor Advertising Association of America |
www.oaaa.org |
| The Direct Marketing Association |
www.the-dma.org |
| U.S. Census Bureau |
www.census.gov |
| American Women in Radio and Television |
www.awrtphoenix.org |
| Society to Advance Media Professionalism (STAMP) |
www.stamponline.org |
| Newspaper Association of America |
www.naa.org |
