I have never attempted anything like this before. From the 10,000 feet view, given an input of a user, I will need to query for a list of all contributors to the Baconjs project and work backwards through each of their other repos to find the next degree's list of users. It's going to be recursive and strange but lots of fun! I'm starting my studies of the first step with the GitHub API docs and the terrific tutorials on Codecademy. They even have one specifically on the GitHub API!
Wish me luck! I'm going to need it!