Looking back one, two, and five years ago today on Worldchanging:

2009
Resources from the Worldchanging Library
A full list of links to great resources in the Worldchanging library organized by these categories: cities, shelter, business, planet, stuff, politics, community...

2008
Everybody Eats: The Unifying Power of Food
Sharon Hoyer examines why the food movement so successfully unites people from all hues of the political spectrum...

2005
Lessons of Ourmedia
Jamais Cascio explores the potential of "true collaborative popular creativity," especially as serviced by an alternative media system like the Ourmedia project...

Other recent "look backs":
August 10
August 11
August 12