Here are two interactive maps of the entire AT trail. Notice that these maps have layers that you can access at the top right hand corner of your screen.
This is a cool distance calculator that you can use to map out points on the trail or see how far I have to go to get to you or a place of interest.
Here is a list of all the Shelters on the trail. I will update My Progress with the shelter I actually stay in as often as possible.