is to 1- make sure you are registered Republican NOW
2- find out how to become a delegate for your state. (there is a really nice post in here already about that)
Everything we do to get Ron Paul some visibility is great...signs, blog posts, ect... but ultimately it's going to boil down to the delegates and that is it.
It sounds like a complicated process, but really it isn't. Please consider looking into it. =)
(or find your local "meet-up" group of Paul supporters and try to help anyone working towards being a delegate)