Links to Commuter Railroads in the USA

NJ TRANSITSouth Shore LineMETRA
SEPTAMBTALIRR
Metro NorthShore Line EastTri Rail
Maryland Transit Administration MARC CalTrainVRE
North County Transit District COASTERMETROLINKACE
Sound Transit SOUNDERTriMet WES 
Utah Transit Authority FrontRunnerMusic City StarTRE
Rio Metro Regional Transit District Rail RunnerCapital MetroRail 

Links to Commuter Railroads in Canada

Metrolynx GO TRANSITAMTTransLink West Coast Express