Direct adverting through this site is available if you are a larger business like a coal stove manufacturer. Contact me for details.
If you are a smaller business Google Adwords is the most cost effective way to advertise here. Ads can be just to people in the area you serve and to others ones. If you deliver coal in New Jersey there is no sense paying for ads being served to people in Pennsylvania. You can do that with Google Adsense among many other things like set budgets, analytics etc.
Google usually offers free credit, this one as of this posting is for $75 if you spend $25.