My interests are music (particularly Johann Sebastian Bach and Frederic Chopin), reading (particularly Robert Jordan's Wheel of Time series), and anything that has to do with being a citizen of the world (and a citizen of the US, and of MS, etc.). My expertise is high in the WoT area, moderately high in the area of Chopin, and middling in the area of Bach, though I have moderately high expertise when it comes to music in general. I read Wikipedia largely from the sources these days.
I mostly make minor edits. I made some major changes to the Pythagorean hammers page, which is at present my most significant change to Wikipedia (the second paragraph is mine, and someone has since come along and added the third paragraph, which is awesome). I'm working on a new page for Harriet McDougal at the moment.