Pennsylvania Driving Under the Influence Association
Pennsylvania Highway Beautification Program
Pennsylvania Highways Ha Ha Page - It will make you laugh, it will make you cry.
Pennsylvania License Plates - Alex Nitzman
Pennsylvania Local Roads Program - Penn State University
Pennsylvania Logo Signing Program
Pennsylvania Motor Truck Association
Pennsylvania Neighborhood Traffic Calming Resource - Bucknell University
Pennsylvania Official State Highway Maps
Pennsylvania One Call System
Pennsylvania Roads - Steve Alpert
Pennsylvania Roads - Rachel Aschmann
Pennsylvania's Roads:  Before the Automobile - Pennsylvania Historical and Museum Commission
Pennsylvania's Roads:  The Twentieth Century - Pennsylvania Historical and Museum Commission
Pennsylvania Road Projects - Brian Polidoro
Pennsylvania Speed Traps
Pennsylvania State Police
Pennsylvania Transportation Institute
Pennsylvania Truck Information
Pennsylvania Truck Stops - Truck Stop Info Plus
Pennsylvania Turnpike Commission
Pennsylvania Vehicle Code
Pennways - Scott Kozel
Philadelphia Area Roads, Crossings, and Exits - Steve Anderson
Philadelphia Interstates - Eric Stuve
Pittsburgh Road Pictures - Jason Machuga
Proof Positive:  PennDOT's Been Smoking Crack - C. C. Slater
Quintessential Pennsylvania - Doug Kerr
Road Pics Page - Adam Prince
Road Sign Page - Greg Coniglio
RV Dump Stations in Pennsylvania - Roundabout Publications
Share-A-Ride - carpool service for Southeast Pennsylvania.
SWPA Roads Project - Adam Prince
Transportation Management Association of Chester County
Yahoo! Groups:  Great Lakes Roads
Yahoo! Groups:  Northeastern U.S. Roads
Yahoo! Groups:  Roadgeek

Delaware

Delaware Department of Transportation
Delaware Highways - Alex Nitzman
Delaware Highway Guides - Eric Stuve
Delaware State Highway Terminus Gallery & Guides - Eric Stuve
Delmarva Highways - Corey Dukes

Maryland

Maryland Department of Transportation
Maryland State Highway Administration
Maryland Highway Guides - Eric Stuve
Maryland Roads - Michael Pruett
Maryland State Ends Project - Brian Polidoro
Washington-Baltimore Area Roads, Crossings, and Exits - Steve Anderson

New Jersey

New Jersey Department of Transportation
New Jersey Turnpike Authority
South Jersey Transportation Authority
Atlantic City Expressway
Garden State Parkway - Bryan Katz
Old New Jersey Roads - Jimmy Williams
New Jersey Expressways and Tollways - Ray Martin
New Jersey Highway Ends - Chris Mason
Roads in New Jersey - Chris Wilson

New York

New York State Department of Transportation
New York City Department of Transportation
New York State Thruway
Capital Highways - Chris Jordan
Empire State Roads - Nathan Perry
Greater New York Roads - David Golub
New York Area Roads, Crossings, and Exits - Steve Anderson
New York Routes - Mark Sinsabaugh
New York State Highway Termini - Doug Kerr
New York State Roads - Doug Kelly
Roadgeeks Anonymous - Mark Sinsabaugh
Rochester's Inner Loop - Mike McManus
Upstate New York State Roads Page - J. P. Wing
Western New York Roads - Jon Deane
The Yamamoto Experience - C. C. Slater

Ohio

Ohio Department of Transportation
Ohio Turnpike
American Byways - Sherman Cahal
Bir'd'in's Roads & Highways Page - David Smith
Cincinnati Transit - Jake Mecklenborg
Ohio Highway Ends - Dan Garnell
Ohio State Highways - John Simpson

Ontario* *Not connected via land but borders over Lake Erie

Ontario Ministry of Transportation
407 Electronic Toll Route
COMPASS
Ontario Construction Reports
Road Signs in Ontario
Highway 416/Veteran's Memorial Highway
Ontario Good Roads Association
Justin's Toronto Traffic Page - Justin Chenier
The King's Highway Ends - Earl Washburn
Ontario Highways - Chris Bessert
Ontario Roads - Brent Hooton
Ontario Road Maps - Neil Wilson
Ontario Secondary Highways - Andrew Novac
OntHighways - Scott Steeves

West Virginia

West Virginia Department of Transportation
West Virginia Turnpike
West Virginia Highways - H. B. Elkins
West Virginia Highway Ends - Adam Prince