Good overview on how the American Red Cross (ARC) uses social media.
Through the heat maps provided by Radian-6, ARC has the ability to better visualize the needs of the worldwide community.
http://www.youtube.com/watch?v=w8nL9WO2m0Y
Definitely a commercial for American Red Cross, Radian-6, and Dell.
Bonus: It also features a few friends too (Hi Gloria and Wendy!)
@rusnivek