I'm a computer junkie and won't spend the $$ for a satellite service, so we look for parks with internet access.
In the past 6 months, we've found several parks offering various types of wifi. Our first experience was with Lone Star Resort in Austin, TX where they had wifi service to the campsite for $4 per 24 hour period. It was fast and reliable - just wonderful. This was my basis for comparison for the rest of the trip.
I found an internet site listing coast to coast park soffering wifi through various providers, so we traveled across the country and tried to stay at those parks. To my dismay, I found that wifi in some parks is ONLY available in the office (these were Jellystone parks in Montana). As we headed back east, we chose a KOA in Nashville - and found that their wifi was $4 PER HOUR. Lesson learned - I ask what wifi means in their park before I make a reservation.
I'd be interested in feedback with parks where you've stayed where they offer wifi that's reasonably priced and at the campsite. Thanks.