It might be productive for you to put an ad in the Isthmus. Just keep in mind, it takes about six months of running an ad before it starts to pay off. After the sixth month, then the payoff jumps very high. But, you have to suffer through the first six months gritting your teeth. I have run business ads before and found this to be true. I got this information from this book which might help you:
I had a much earlier edition, as I read this in the early 1990s. It has helped me a LOT with my business, so I give it a very high recommend. Good luck!
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http://www.amazon.com/Guerrilla-Marketing-4th-Inexpensive-Strategies/dp/0618785914/ref=sr_1_2?ie=UTF8&s=books&qid=1284391786&sr=8-2
I had a much earlier edition, as I read this in the early 1990s. It has helped me a LOT with my business, so I give it a very high recommend. Good luck!