Miss, Ms, Mrs ?

I never really know what's the difference between Miss and Ms..
but i know Mrs is for married woman..
so, I Googled it and read through a lot of Yahoo answers, forums, and many things else (wow, enough with research life eh?)..

i think this link here might concludes everything..

Mrs - married woman
Miss - unmarried woman
Ms - married/unmarried woman

Ms is used out of courtesy when we do not know the marital status of the woman, or if she prefers the title.

another thing, the way we say it suppose to be different,
and this is new to me, never notice about it at all before,
Ms = /miz/
Miss = /mis/

well, i might say you can use Ms when you're not sure if the person you're addressing to is married or not..
this way, i clear the things on my head