Social Marketing : 던킨도너츠, Skittles, Burger King, Starbucks...

던킨도너츠 & Facebook
http://mashable.com/2009/06/03/dunkin-donuts-facebook-campaign/

Skittles & Twitter, Flickr
http://mashable.com/2009/03/02/skittles-social/

10 of the Smartest Big Brands in Social Media
http://mashable.com/2009/02/06/social-media-smartest-brands/?cp=3