Keystone Crossings - Jerry Britton's megasite and home of "PRR-Talk"!
Keystone Model Railroad Historical Society - Mechanicsburg, Pa.
"Merchandise Service" - Dealer of model railroading products, specializing in PRR and DCC.
National Railway Historical Society, Harrisburg Chapter
Operators - A group of PRR model railroad operators in central Pennsylvania.
Mark Bej's PRR Site - "The Broad Way".
Gary Mittner's PRR Site - Mostly Pennsy steam locomotive pics.
Bob Netzlof's PRR Site - Valuation maps and other Pennsy documents.
Gary Spear's PRR Site - Mostly Pennsy passenger equipment information.
