First thing, I could not find a link to Camping Chatter.

Just Kidding!
That is a well put together and thought out site. I would say just keep up with what you are already doing.
When I went to the site, first thing I thought about was where can I camp. I was able to quickly find the information and it had links to the official sites to make reservations and such. Like I said well done.
If you have a press release or would like to write an article introducing your site, I would be happy to post it on my camping blog.
Dave