For hardcore-Facebook users and data-lovers 🙂 Analyze and visualize your Facebook connections and activities with Wolfram Alpha’s Facebook Personal Analytics Tool!
The analysis churned out this network cluster diagram of all my friends. Each colour basically represents every school, university or activity I’ve been involved with! (a couple of outliers were trimmed out in the screenshot).
Less fancy, but still pretty useful, a diagram of where my friends are located around the world!