Provides Internet audience measurement and ratings services, website and user surveys, website evaluation, useability and concept testing and research reports.

Comprehensive source of market data about the Internet, including: demographics, geographics, hardware, and traffic patterns.

Internet market statistics, news and reports. eMarketer does a good job comparing its market data results with those published by several of the more well-known consulting groups.

Carry out Internet research and analysis providing intelligence reports relating to global internet traffic and trends. Includes breakdowns of the top websites in the world and their popularity.

On-line communications agency for brand promotion, publicity, launch strategies and audience research.

Offers Internet marketing research services, industry tracking, data collection and analysis.