I found these two blogs run by a husband and wife team who, in addition to being bloggers, are realestate agents as well. The information they present is good, concise, and actionable. Not to mention the header graphics are really eye catching--you'll have to visit for yourself, no hints from me!
The Advanced Business Blogging site is interesting as it is a model for how a small business can use a blog--or website for that matter--to increase their revenue. This couple have created a series of videos and DVDs about business blogging and other topics. Are they the best experts out there? Maybe, maybe not. But they are out there. How does this apply to you for marketing? How about write a short pamphlet with some "secrets" to your particular business. Have it produced nicely, copied, and bound. Most of this you can do your self and leave the printing to Kinkos! Then give some kind of teaser on your website and sell the whole thing for a reasonable, but within impluse buying range (say $20-30). You might be surprised at how many you can sell in a short period of time.