Personally, I’ve had good experience with Google Adwords where you can set your ad budget to as little as one dollar per day. (You may be able to set it even lower, but let’s get serious, you DO want to sell this place don’t you? Adwords also coordinates with Google Analytics, which will tell you far more than you need to know about the traffic you’re getting to your pages. Also provided are ways to see how effective the ads you write are proving to be. LandWatch.com is another favorite source of mine which consistently supplies better-quality leads, that is, more serious clients, than Google and others.
If you need to find a buyer fast, our company is in the land buying business. If you've got time to wait for a few months, then get it posted on your standard online sites (don't underestimate Craigslist!) and consider hiring an agent. If that doesn't work out or you don't feel like waiting, we've got a network of buyers at Landmark Property Buyers.