MySpace, FaceBook, Twitter. Keep up!
Up next - log on for virtual wheeling - you never have to actually get muddy. Build your Jeep or ATV, drive it, earn points to buy upgrades. Unlock levels for more difficult trails. Buy and sell to fill your garage, swap your virtual wife when she gets fed up with your hobby. Or choose your identity to be an environmental extremist and set booby traps, lobby congress to shut trails down! Write system-wide viral code that shuts down millions of acres and sets them aside as National Parks and Protected Wilderness.
I think I'm getting old - but in the meantime, I think I'd better file a patent on that idea...