When people tell me that can't blog or write articles for their newsletter or their web site, I always think to myself, "then you not a very interested person." If you take an interest in your industry or your location, you'll find SO MANY things to share and discuss. If you're totally focused on your own self-interest, then you're going to find it difficult to interest other people.
American Express OPEN Forum: How to Be Fascinating, 2010-May-11, by Guy Kawasaki
...it's all about finding good stories, videos and blog posts about your subject and providing links to these sources. For example, if you own a restaurant, then you could post a link to The Second Annual New York Foodie Photo Scavenger Hunt, Cilantro Haters, It’s Not Your Fault, and Check It Out: Get Your Groceries At The Library. Do this for a few months, and people will recognize you as a food expert. And guess what? They’ll come eat at your restaurant.