- Advertising Age – 100 Leading Media Companies
- Mediabistro – Newsfeeds, job postings, blogs, and online classes.
- MediaCentral – News for Media and Marketing Professionals
- US Business Reporter – Publishing Industry Profile
Radio & Television
- Google Questions How to start an internet radio station.
- Marketing Charts – daily marketing trends with current data on television, interactive and social media, print, radio, mobile phone, cable, outdoor and direct
- BIA Kelsey – directories and market reports for radio, television and newspaper media