Threading is Useless
I wanted to file this away in my blog where I can find it easily in the future: The Problem with Threads, a rather sedate name for an article that end up calling them insane.... and pretty much meaning it wholeheartedly.
I think in coming years this will come to be considered one of the seminal papers in software engineering, if it isn't already. The topic has been covered before, elsewhere, but I don't know of any other single work that demolishes threads as thoroughly and undeniably as this.