Craig's list is pretty good, if you live in the metro area of one of the cities they serve. There's a musicians' section. And I'm pretty sure it's free to place a musician ad.
i have ads posted on the bulletin boards of 3 shops around my town with my name, phone #, email, aim, yim, & msn and a top secret soundclick url on it. i haven't gotten any calls or emails or anything but i know people are looking at the soundclick page i set up. i haven't given that url to anyone at all otherwise. the only way anyone could possibly know about that page is by using the link on those ads.
Well, since I have posted the first question, I have gotten in touch with a couple of guys around the area, one who lives about 5 minutes away from me.
So I would say that boards like these are a great way to get together with others.
Jeff
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But I know we can't all stay here forever. So I want to write my words on the face of today..and then they'll paint it.