For National park/forest/etc. camping try recreation.gov
For the State parks try ncparks.gov
For commercial RV parks and resorts try the link off the main Good Sam Club page.
For paved bike trails try traillink.com - it will allow you to move the map around to see if there is a park nearby, but you'll still have to check each park to see if they have camping.
There are a lot of nice parks in North Carolina, but trying to find a park in any state that is close to a non-mountain bike trial can be frustrating. We like to ride on rails-to-trails bike routes, but it can be a booger to track down one that is close to good camping. I use traillink.com, then expand the map until I can see what parks are nearby (green.) Then, I have to look at the info for each of those parks to see if there is camping. I wish there were a better way, but that's the best that I have found so far...
- Randy
1975 Westfalia Campmobile "Backroads Wanderer"
2014 Rockwood A122 hard side popup