Wikipedia is life.
I've been editing the encyclopedia on and off since 2006 or so. I am currently a Postdoctoral Fellow at the University of Maryland iSchool, working on a cooperative project with the National Agricultural Library on digital curation.
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.