1: Flight of the Code Monkey by Kid Wigger Without question my favorite SF story here. Believable settings, drama, action, character development, TWO completely separate (so far) plot lines. My only complaint is the long delay between chapters.
Another long do-over story with lots of discussion and analysis of how things work.
7: Magic by Lazlo Zalezac What happens when you mix nerds, weirdos, perverts, beautiful women, disfunctional schools and governments, insane parents, and magic? You get "Magic".