The Klout Score is the measurement of your overall online influence.
"Klout is turning Twitter into a game. As you tweet and connect with other Twitter users, you earn badges for notable achievements. For example, when you're mentioned by 100 unique users, or have a message retweeted by 25 people, your Klout profile gets a pretty new graphic. "
The Klout Score is the measurement of your overall online influence. The scores range from 1 to 100 with higher scores representing a wider and stronger sphere of influence. Klout uses over 35 variables on Facebook and Twitter to measure True Reach, Amplification Probability, and Network Score.