• Usage doubles every 100 days*
• 146M users as of Dec 1998**
  (versus 830M Telephone terminations)
• Est. 300M-1B users by Dec 2000***
• Internet users > telephone users by 2005***
• E-Commerce growth is spectacular stating in 1998

2001
No one tracks this now. Next Generation Internet tracked trends up to 2000.
But there are very detailed breakdowns on application and technology usage for business use:
Nielsen NetRatings
NUA Internet Surveys
Netcraft Web Server Survey