Klout is a new phenomenon in marketing, it's a tool that measures your online clout. At best, it can be helpful to see what moves your online presence and at worst, well, a person can become obsessed with their score. I like to be aware of the new and different tools out there so I can pick and choose what helps me, and my clients.
If you would like to learn more about Klout, or to see what your score is, check it out here: Klout Website
It's easy and free to sign up for an account. I recently joined and have been amazed at the simple things that will move my score up and down.