Wikipedia is life.
I've been editing the encyclopedia on and off since 2006 or so. Right now, I am a doctoral student at the University of Michigan School of Information.
I try to help as best I can, making a few edits here and there and rescuing dead-end and orphaned pages. Fix links when I find broken ones, repair vandalism, and feel good about contributing to one of the most important projects in the history of mankind.
These are the articles I have truly "authored" in the sense that I wrote the first words about them on Wikipedia. This does not count the images etc that I have uploaded.