Well, as promised, I have written an emitters tutorial docu. It is basically the post I made a while back, but I added a few more things this time around. I am still trying to learn more about emitters, so yeah. I don't know everything about them but I do plan to when I get enough time to. Anyway, here's the document.
<3
EDIT: Always scroll down if there are more than one posts by me on this thread; I might have uploaded a newer version of the docu.
EDIT: Added 'emitter.particle.spin'