Web 2.0 communities effectively harness collective intelligence and mass collaboration to solve knowledge sharing problems. They allow for customers and social technologies to contribute to the mass production and reproduction of knowledge. Early definitions of Web 2.0 focused on using open interfaces and open execution on top of open hypertext to take advantage of the web's ability to share knowledge on a massive scale.

1. HOW WEB 2.0 COMMUNITIES
SOLVE THE KNOWLEDGE
SHARING PROBLEM
J.P. Allen
University of San Francisco
blog.jpedia.org

2. What’s significant about web 2.0?
Here Comes Everybody (Shirky, 2008) - collective action without organizations
The Wealth of Network (Benkler, 2006) - commons-based peer production
Wikinomics (Tapscott and Williams, 2006) - mass collaboration
Groundswe! (Li and Bernoff, 2008) - customers and social technologies
Original Web 2.0 definition (O’Reilly, 2005) - harnessing collective
intelligence
knowledge sharing
the mass (re)production of knowledge
“a natural lab for open knowledge”