While traveling on the road full time or even part time, one of the most important thing to find is a place to stay overnight or even a few days. One of the most important sites we have found for this is recently is iOverlander.
The App has a nice map that uses your phone's GPS to help display places next to you. People make entries and rate locations. They may or may not give you a lot of information. It also lists other resources that might be needed like dumps and water. Although for Dumps, I find something like Sanidumps to be better for the listings. Still it is nice to have stuff in only one App.
The only thing I do have to say is that to certain degree I have found most iOverlander reviewers are not in 5th Wheel or Travel Trailer RVs. Seems like most are of the Car or Van variety. I say this because of the locations given look like they are only meant for a car or a van. We had a hell of a time getting back up a road because it lead to point that we couldn't turn around, which meant we had to back up the road, which was not easy at all. I am thankful to the reviewers that tell you if their RV fit or not at a location.