|We belong to Passport America and use it frequently. Many, many parks. Good web site. Great smartphone app.
We belong to Camp Club USA and have used it a lot. CCUSA just announced that they are joining up with Passport America and closing down CCUSA. They had a great web site.
We belong to KOA and get 10% discount. A large number of parks. Good web site.
We belong to Good Sam and get 10% discount. Good web site. Many, many parks.
We belong to Escapees and get various discount rates at different parks.
We belong to FMCA but haven't used their discount yet.
We joined Sunrise Resorts and have used their parks (west coast and Alaska) some. This is a membership system but you can also get Coast-To-Coast at a discount with them. We used Coast the first couple of years but dropped it because we were doing better with Passport America and Camp Club USA without the high annual fee.
Note: we are fulltimers and have stayed in 57 states and provinces over the last five years. You can see our travels and history at www.Violette.com .