User Payments: Predictions for 2001 Revisited
http://www.useit.com/alertbox/20011223.html

Nielsen, Jakob
Alertbox
2001

Abstract:

Advertising-supported websites will soon be a thing of the past. As I predicted a year ago, sites began charging for services in 2001. Although most sites are still not handling payments right, two innovative European projects hold much hope for 2002.