This issue can be overcome if you can establish a legal, recorded easement to the property. This can be done if one of the neighbors is willing to allow you access through their property – to yours. In many cases, a neighbor shouldn't be expected to do this for free, you'll have to give them a reason to help you (usually in the form of money). Again, this isn't an impossible issue to overcome, but it is definitely something you'll want to be aware of before you purchase.
Your potential buyer needs to see more than just the words you use to describe the land. They also need to visually connect with the property via high quality maps and pictures of the parcel and surrounding area. You don't need to have 50 pictures but you do need at least five or so to give the buyer an idea of the terrain, soil and views as well as the road of where they would access the land. You should include a plat map (call the county for a copy), general area map (I like to use Google Earth for maps) and a topographic map is always helpful as well. You can always contact a local surveyor if you need help preparing the maps and getting the GPS coordinates.
After identifying your likely buyers, try to think like them so you can focus your message to convey what they need to know about your property. Have information ready about schools, shopping and other nearby amenities. For developable land you can be prepared with zoning information and insight from local authorities about the location and capacity of water and sewer service. Each property is different, so customize your information for your situation and your targeted buyers.