WOW! Thanks for all the suggestions. I use maps all day at work so the Google Earth thing was a no brainer. It's hard to know who's permanent or not but at least I can tell if it's a parking lot full of RVs or a campground that has some privacy and woods.
I wish there were standards that didn't allow a place to call itself a campground unless a certain high percent of spaces were dedicated to 2 weeks or less. Some owners haven't figured out theres a difference between a trailer park, an RV park and a campground.
I REALLY appreciate the suggestions. Keep em coming.