Most of the time the buyer that purchases a property sees that property with a Realtor (about 90% of the time). So the best way to sell your property is to list it with a Realtor that has experience in selling vacant land.
If you do not happen to know a Realtor in that area, you have a couple of options:
Ask a Realtor that you know in your local area to find one for you (very common in our line of work because many times people are moving a great distance to a new plane and do not know a Realtor in their destination).
You could also look in Trulia for a Realtor. I am sure there are at least a few.
You're welcome to have your Realtor place the listing of your property on Trulia, but they don't allow unrepresented sellers to advertise their property for sale. If you're looking for a good RE pro, ask your friends, neighbors and family whom they would recommend.