Toll and Automated

E-ZPass Interagency Group - Provides electronic toll collection interoperation. Lists members and gives contact information.
http://www.e-zpassiag.com/

Roam - Electronic toll collection system used around Sydney, Australia, including on the M7. Includes e-TAG and e-PASS transponder information.
http://www.roam.com.au/

HowStuffWorks: How E-ZPass Works - Fully illustrated tutorial explains E-Zpass, an electronic toll-collection system consisting of a 900-MHz band car transponder, antenna, lane controller, LAN and host computer system.
http://www.howstuffworks.com/e-zpass.htm

E-Z Pass - Electronic toll collection system that is common in the Northeast U.S., based in New Jersey.
http://www.ezpass.com/

Highway Toll Administration - Provides electronic toll collection services. Site includes client information.
http://www.htallc.com/

HowStuffWorks: How Intelligent Highways Will Work - Graphic narrative shows the future freeway's new, cheaper technology and explains how ubiquitous digital devices will aid in easing our traffic woes, perhaps using triangulation.
http://www.howstuffworks.com/intelligent-highway.htm

Toll Facilities in the United States - Full and partial lists with details, courtesy the Federal Highway Administration.
http://www.fhwa.dot.gov/ohim/tollpage.htm

MACPASS - Automated Toll Collection System - Service available for crossing of various bridges in the Maritime Provinces of Canada. FAQs, price information, and application forms.
http://www.macpass.com/

TollRoadsNews - Online private newsletter providing information and commentary.
http://www.tollroadsnews.com/

Halifax-Dartmouth Bridge Commission - Authority for the Angus L. Macdonald and A. Murray MacKay Bridges that connect Halifax to Dartmouth in Nova Scotia, Canada.
http://www.hdbc.ca/

Traffic Technologies, Incorporated - Consultants for Intelligent Transportation Systems (ITS). Has links to clients.
http://www.t-t-i.com/

M-TAG - Electronic toll collection system for bridges and tunnels in Baltimore, Maryland, U.S.
http://www.m-tag.com/

International Bridge, Tunnel and Turnpike Association - Alliance of toll operators and associated industries. Includes news and resources.
http://www.ibtta.org/

Electronic Toll Collection System - Metro Road Systems' division. Includes client list.
http://www.metroroadsystems.com/toll_collections.shtml