Do you think Ben controls the black smoke or is it controlled by Jacob?

You can ask for it's assistance, or influence it. It cannot be controlled.

i think is connected to it and uses it to do his bidding! god i love lost!

I think Ben asked for it's help.

from 4.09 it doesnt look like its jacob. because it comes to bens aid and then after they still need to go find jacob...

I don't know much about Jacob, and I don't know much about Smokey, so... maybe they're connected? lol

I do think that they are connected, or that Jacob has some kind of 'connection' with it

no idea.

I think it just co-exists if you know what i mean.

i don't know !!
it's very coplecated , and i'm not shore about it !!