"People now believe that instead of just surfing the web, users should contribute as much content as they consume. The results are blogs and Wikis. This is fundamentally different from simply using a web-based application to sell something, find a job or find a mate. The difference is that blogs and Wikis support the distribution of ideas and innovations."
[esta tinha ficado esquecida em modo draft, desde Março deste ano, mas ainda vem muito a tempo ;-)] The Next Wave in Productivity Tools: Web Office, by Rod Boothby (2006):