Jobs at small Omaha companies nobody posts about - 11 weeks in

A friend who works at a local manufacturer says there are openings not advertised online. I have been trying to stay organised about it. One is a print shop, one is an accounting firm and one is a clinic. Should I visit in person?

Thanks for writing this out. I went through something close to it 4 months ago, and it settled down once I kept a simple log of every call and form.