I just created a forum where people from Colorado can exchange information about what is going on in Colorado and where they can meet some new friends.

But what is the best way to promote a local (Colorado) forum?
It is very difficult for me to find people who want to participate since I am an international student and hardly know anybody in Colorado myself.
My entire budget is under $100, lol. (But I do have a lot of time)

The forum is in my signature.