Some pages with statistics about growth and usage of the Internet:

• ActivMedia
• Computer Intelligence Infocorp
• Forrester Research
• GVU WWW User Surveys
• Hambrecht & Quist
• I-Traffic
• IntelliQuest
• Jupiter Communications
• Killen & Associates
• Market Facts
• Multiscope Marketing Services (Dutch)
• Network Wizards
• Nielsen Media Research
• PC Meter
• RelevantKnowledge
• Simba Information
• The Standard
• Web 21
• Zona Research