Yesterday I asked you what kinds of case studies of nonprofits using the social web you'd like to read about on the NetSquared Blog. In a comment on a different post, Joe Solomon reminded me about the socialmedia4change wiki.
The socialmedai4change wiki is a community wiki of examples of how nonprofits and social change makers are using social networks for social change. It has examples of how people are using:
Blog widgets
Digg
Facebook
Firefox Extensions
Flickr
MySpace
Second Life
StumbleUpon
Twitter
YouTube
Anyone can add examples to the wiki, so feel free to add examples of how your organization has used social networks in its work.