I edit and write Wikipedia articles and Wikibooks occasionally. I do this primarily in subjects that interest me or pertain to me. I also have been to edit articles that have highly apparent errors in them that I notice from time to time.
I usually edit and write articles that are either historical in nature or are some sort of social science. (i.e. my work on the IB Geography Wikibook) I have also worked to improve the Hamline University wikipage because I live in that area and thus know a bit about Hamline.
If you have any questions please feel free to email me.