User demographics

See also: personas

Statistical services

• Cyberatlas
  Market research and Internet statistics focusing on ecommerce.

• NUA Internet Surveys
  Surveys, statistics and trends, plus articles on a range of Internet growth and usage trends.

• Statmarket
  Statistics on global Internet and user trends. Some stats and articles provided free of charge.

• TheCounter
  Monthly statistics on web users' technical context (browsers, OS, screen resolution, etc.).

• Global Reach
  Statistics on language populations online.