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.
This is my second take on "Twitter Score Bookmarklet" but this time using Klout instead of Topsy to quickly display online influence score of Twitter accounts.
You don't take this Twitter stuff too seriously. People towards the lower left corner are probably very new to social media. Most people in this quadrant tend to engage with a small group of friends that they know in real life.