I am a huge fan of Wikipedia, but for the most part I will only edit pages involving weapons from Prehistory through the Rennaisance, as that tends to be the one area that I am confident enough in my knowledge to correct the work of others.
My focus at the moment is on European axes; most people study swords, so I leave that to them. My Primary period of interest is approx 500 AD through 1100 AD, Europe and Western Asia.