My Friends Are Strongly Connected

I was perusing Facebook and found a cool application (after Jon Dokulil added it) about making a "friend wheel." Normally, I say "bunk" to any application, but this attracts my graph-theory interests, as it places your friends in a circle with lines between them if they are friends with each other. It turns out that being in JDE has granted me a strong network of friends who also know each other. This is the largest cluster, followed closely by math grad students and the Supersnafu crew from high school. Click here for the full-resolution version of my friend wheel, or click here for a smaller, annotated version.

I also noted that the application was created by some sophomore in the UK. It's pretty cool php scripting, but I think his talents should go into something else. Yet, more people know him for his facebook application than people know me for... what have I done?