This industry comprises establishments primarily engaged in systematically gathering, recording, tabulating, and presenting marketing and public opinion data. Illustrative Examples: Broadcast media rating services Political opinion polling services Marketing analysis or research services Statistical sampling services Opinion research services Establishments primarily engaged in--

Including:

• Broadcast media rating services
• Internet media audience research services
• Internet traffic monitoring research services
• Marketing analysis services
• Marketing research services
• Opinion research services
• Political opinion polling services
• Public opinion polling services
• Public opinion research services
• Sampling services, statistical