I'm quite an active member on Mario Wiki. I help fight vandalism, improve pages, and generally try to become a friendly member to point people in the right direction.
I've worked on the Mario Kart Wii article (added a lot of images), the Mario article (kind of half rewritten it) and the Mario and Sonic at the Olympic Games article. I'm aiming to get quite a few articles up to a decent length and quality, and to get a lot of good-quality official images on them too. If we have a good read through multiple sources of information already out there and combine them and then rewrite them, we can get good quality articles with original info which may possibly rival Wikipedia or the other MarioWiki.
I have rollback rights on this wiki.