Many people are surprised to find how inexpensive it is to advertise in targeted magazines. You can often pay a lot less than the advertised price in the magazine. All you need to do is ask the ad team what kind of special deal they can give you.
It's often easiest to find smaller magazines that have a very targeted audience. Write your ad copy to explain that you're giving something away for free, or talk about a special promotion you're having. Once again, it doesn't matter whether you focus your energies online or offline, this strategy can work for you.