Center for Transportation Research and Training
- Gives descriptions and comparisons to traffic circles. Includes a photo gallery of selected examples.
- http://www.k-state.edu/roundabouts/

MTJ Engineering
- Focuses on roundabout planning, design, and construction. Site includes project list and news.
- http://www.mtjengineering.com/

Roundabouts
- Description, benefits, what drivers and pedestrians should do in a roundabout, and links. From Genesee Transportation Council, New York.
- http://www.gtcmpo.org/Programs/Resources/Roundabouts.htm

Modern Roundabouts
- Overview and photographic examples. Part of a designer's website.
- http://www.roundabouts.net/roundabouts.html

Alaska Roundabouts
- Shows different facilities, with a focus on Alaska. Also discusses technical aspects.
- http://www.alaskaroundabouts.com/

NorthEast Area Roundabouts
- Resource page focusing on the Northeast U.S. but covering a wide area.
- http://members.cox.net/near/

Magic Roundabouts
- Compilation of features with this design in the United Kingdom.
- http://www.pberry.plus.com/ukroads/magicroundabouts/

RoundaboutsUSA
- Written by road engineers. Includes a history, a description of design basics, photos, and links.
- http://www.roundaboutsusa.com/

The Landlocked Navigator's Roundabout Adventure
- Observations, with photographs, of the Magic Roundabout in Swindon, England.
- http://www.digitalnorseman.com/musings/2002/rndabt.html

SwindonWeb - Magic Roundabout
- Photographs and description of this complex intersection in England.
- http://www.swindonweb.com/life/lifemagi0.htm

Roundabouts: An Informational Guide
- Document by the Turner-Fairbank Highway Research Center, part of the United States Federal Highway Administration.
- http://www.tfhrc.gov/safety/00068.htm

Roundabouts Canada
- Consultancy. Includes a forum. Contains a webcam of the first modern roundabout in the country, in Hamilton, Ontario.
- http://www.roundabouts.ca/