In the past I lucked out by people with a following finding it and linking to me. I've had less success making that happen on purpose. The thing that works for me is being consistent (posting your new music every week, etc) so that people who are true fans learn to expect you. It also took me a while to get comfortable telling people what I was working on (well, I still am getting comfortable with that). I suggest telling 10 people you know, seeing how it goes, then another 10, etc.