From September 2005 to June 2006 a team of thirteen scholars at the The University of Southern California's Annenberg Center for Communication explored how new and maturing networking technologies are transforming the way in which we interact with content, media sources, other individuals and groups, and the world that surrounds us.
This site documents the process and the results.
As this article points out, Yahoo is embracing social tagging in its quest to make its product more relevant. In other thoughts, Marc Pincus suggests that we don't need more more feeds, we need feed editors.
.
.