An interesting analysis (lots of Maths) of macro across the leagues: Do you macro like a pro?

Some good comments on a reddit thread: http://www.reddit.com/r/starcraft/comments/ga9w0/theorycraft_how_to_get_better_at_starcraft_or_why/c1m60j1

”fookhar comments on {Theorycraft} How to Get Better at Starcraft; or: Why You Should Practice Your Macro”, CryHav0c comments on {Theorycraft} How to Get Better at Starcraft; or: Why You Should Practice Your Macro

I particularly like the first one, aside from the problem that stalkers on their own are not that great.