Interpublic's Emerging Media Lab and SocialVibe have a patented micro payment system that offers incentives (e.g. charitable donations to favored causes like World Wildlife Fund and Stand Up to Cancer) "to the members of social networks who promote their brands on their personal pages". The public beta began in May 2008. Can you DIGG it?

The whole story from Online Media Daily is titled "Interpublic Unveils New Lab Initiative, Backs Platform That Links Brands With Social Networks".