I'm planning to ride through Pennsylvania on Bike Route L, from Lanesboro down to the Delaware state line (then onward to Virginia).
I rode Bike Route J last summer and was pretty happy with it, the signage was great and overall the roads were good.
Does anyone have experience with Bike Route L? Any suggestions, things to watch out for, etc? (here's the route: http://www.bikepa.com/images/routelmap.gif)