What: After noticing the lack of a tool to allow marketers to target consumers on Facebook in a very direct, individualized way, social media startup Involver partnered with Klout, an influence measurement company, to develop an app to bring a service to Facebook that lets brands communicate with targeted consumer groups based on their Klout scores.

How: Consumers click the Involver tab on a participating brand's page and opt in to have their Klout score generated. From ...