Joel, you've been given some excellent advice already. I agree that you really should find a way to generate cash to spend on marketing. However, if I were truly broke, here's what I'd do. I'd make a very simple flyer or brochure and print a bunch of copies cheaply at an office supply store. Then I would start visiting businesses in person, in office parks or high-rise office buildings. I would simply introduce myself to the receptionist, and ask if the IT person was in and ask if I could speak to him/her. Chances are you're not going to get past the gatekeeper, but perhaps you can get a name. Make a note of the relevant person's name. If you do get past the gatekeeper and actually get to meet the person you're targeting, just introduce yourself briefly, state what you do, and ask if you can leave a flyer with him/her in case they ever need your services. Visit again a few weeks later if you're in the neighborhood. This is really hard work, day in and day out, but sales experts say that if you do this six hours a day for a couple months, soon you'll have business rolling in.