I have never camped in PA, so I can not help ypu there. I do used this site a lot to find good camp grounds and for 99% of the time the reviews are right on.
http://www.campgroundreviews.com/
There is another reviewer of camp grounds also which I use sometimes.
http://www.gocampingamerica.com/index.aspx
You do not have to be a member to either site to use the reviews, only to post any reviews on a camp ground is a membership required.
Jim