Moving Toward Web 2.0 in K-12 Education

What are, then, the aspects of Web 2.0 that translate into achieving educational goals? Let me suggest the following list of educational benefits of Web 2.0, which I hesitate to claim as exhaustive, but which I hope will help the discussion.

Engagement.
Authenticity.
Participation.
Openness and Access to Information.
Collaboration.
Creativity.
Passionate Interest and Personal Expression.
Discussion.
Asynchronous Contribution.
Proactivity.
Critical Thinking.
(Link: Moving Toward Web 2.0 in K-12 Education)