Undeveloped or Vacant
Hunting Properties - http://spooknationfarms.com
Prime hunting land for sale by professional hunter Spook Spann. Each property has been expertly managed to produce monster bucks.
Realtors Land Institute - http://www.rliland.com/
A membership organization of land sales experts aiming to build knowledge, relationships, and business through education and professional development programs, and advocacy. Also includes newsletter, membership application, and resources.