en: Wikipedia · contributions ·
Meta-Wiki · contributions ·
Wikiversity · contributions ·
fr: Wikipedia · contributions ·
simple: Wikipedia · contributions ·
WikiNews · contributions ·
WikiBooks · contributions ·
Commons · contributions ·

I'm Martin Walker, and I teach organic chemistry at the State University of New York at Potsdam in the US. I'm mainly active on the English Wikipedia at w:User:Walkerma. I've written a couple of chemistry news articles, and I also add a lot of the news shorts at the Wikipedia Chemistry Portal.