The National Park Service has produced very nice road maps of the Blue Ridge Parkway and Skyline Drive.
Use the following link to view the Blue Ridge Parkway map.
Use the following link to view the map of the Shenandoah National Park, including Skyline Drive.
Travelogues and other information are available for the Blue Ridge Parkway. The Blue Ridge Parkway Association is a great source.
tourdeblueridge 
Thanks, Steve, for your efforts. I will be making a donation to PCN, as well as walking again in the Lustgarten Foundation Walk for Pancreatic Cancer Research this spring. Unfortunately,our actions will be in memory of my sister for the first time. Nevertheless, Davida was all about helping others, and so from somewhere out there, she applauds the efforts.