I was bored this afternoon and decided to do something with the stack overflow data dump. I defined a "Jon Skeet" number, similar to the Erdos Number.

You can check your Jon Skeet Number here: http://sharpenyourteeth.net/stackoverflow/index.php

The Erdos Number is based on authorship of papers. To calculate a Jon Skeet number I define the "authorship" of answers to a particular question. First, only questions that are not closed and not community wiki are considered. A question must also have an answer of at least 5 upvotes (doesn't matter if there is an accepted answer or not). The "authors" that answered that question are determined as follows. Say the top answer has X points. All users with an answer in the range [ceil(0.75*X), X] are considered co-authors to the answer of that question.

To actually calculate the Jon Skeet number I made a graph of authors (there is an edge between every pair of co-authors) and did a breadth-first search starting with Jon Skeet.

Waste of time? Yeah, but I haven't written any code in a while so it was fun. Maybe someone else will like the idea.