Applied mathematician, and long time skeptic... just didn't know there were others until a couple years ago. Now I can't seem to avoid them!
Q&A for scientific skepticism
Q&A for linguists, etymologists, and serious English language enthusiasts
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Q&A for professional and enthusiast programmers
Q&A for science fiction and fantasy enthusiasts