Share 'Advice on building up distro stock?'

So, a few months ago I started Punk Tree Distro (facebook.com/punktreedistro, working on a real website as we speak). I know part of the point of running a distro is to contact and build relationships with individual zinesters, because that's where community comes from. People have lives, so things often get delayed and letters don't get sent, but a distro with only three or four zines in it isn'…