However internet advertising of bitcoin can help local business if and only if they are themselves willing to accept it - which I am afraid from my own personal experience, not.
You cannot say that local businesses will not prefer adopt bitcoins. There are reasons why they are now willing and not willing to do so for now maybe one simple reason must be they know little or nothing about bitcoin. But, as time goes on, it will get to a time that most of those businesses will be begging you to pay them through bitcoin. I am sure those magic times will come in real soon.
The time when almost everyone would be using bitcoins will come for sure... but i don't think anyone would beg someone to pay them with bitcoins as in that time there will be a lot of customers for them willing to pay them with bitcoins so they wont need to do anything like that i guess...