While this article isn’t particularly about network theory it is an excellent study in what can be done with some data, a computer and a small amount of time.  Wolfram explores the numbers (and distributions) behind his email…  An amusing analysis: http://blog.stephenwolfram.com/2012/03/the-personal-analytics-of-my-life/.  Candidly, the aim of the article is to show off the new Wolfram Alpha Pro offering.  The graphs are cute and the comemntary is fun.  But, given the nature of the data and the power of the computational tools available to Dr Wolfram, why not a network analysis?