First of all let me say that having spent the past 20 years working closely with small businesses I know exactly what works when it comes to offline advertising.
What I have found today is that online businesses have a built in advantage when it comes to promoting their business offline. You already have a website and autoresponder in place to lead your prospect to. When you combine that fact along with the traditional capture methods of telephone and snail mail there is no reason any online business can't use offline methods to build their businesses and sell their products and services.
A lot of online based businesses forget about offline advertising. I know I have. It is important to combine offline and online advertising together in your marketing campaign. This will give you to a more well rounded approach to promoting as well as attract potential prospects and customers you might not otherwise get.
In all your offline advertising you want to include your web site address, e-mail or autoresponder addresses, and your phone number and mailing address. This gives you the appearance of a real bonafide business.
Another thing is to start selling products for manufacturers who offer co-op advertising for promoting their products. You can read a little more about this technique in an article I wrote titled "Why Are You Wasting Free Advertising Money?"
Jeff Schuman is a 20 year veteran of sales and marketing and has made over $35 million dollars in sales in that time. His