Where can I find more information about biking?

Folding bikes:

http://www.dahon.com/

http://www.bikefriday.com/

http://www.trekbikes.com

http://www.birdybike.com/

http://www.bromptonbicycle.co.uk/ (may be difficult to locate a dealer near you)

Bike dealers:

http://www.cannondale.com

http://www.trekbikes.com

http://www.specialized.com/

http://www.giant-bicycles.com/en-US/

http://www.schwinn.com/

http://www.raleighusa.com/

Adult trikes:

http://www.sunbicycles.com/

Bike advocacy:

http://www.bicycling.com/

http://www.transalt.org/

http://www.bikeleague.org/

http://www.bicyclinginfo.org/op/ag.cfm

http://www.adv-cycling.org/

http://www.bikeleague.org/members/magazine.php

http://www.railtrails.org/

REFERENCES:

http://www.pedalinghistory.com/PHhistory.html

http://www.bicyclinginfo.org/insight/fact_sheets/index.cfm#how_many

http://www.bicyclinginfo.org/survey2002.htm

Adams, J. & Hillman, M. The risk compensation theory and bicycle helmets. Inj Prev 2001;7: 89-91

Andersen, L.B., et al. All-cause mortality associated with physical activity during leisure time, work, sports, and cycling to work. Arch Intern Med. 2000 Jun 12;160(11):1621-8.

Bicycle. David Herlihy Yale University Press 2004.

Bicycle Retailer and Industry News. http://www.bikeleague.org/media/facts/#sold August 7, 2007

Matthews, C., et al. Influence of exercise, walking, cycling, and overall nonexercise physical activity on mortality in Chinese women. Am J Epidemiol. 2007 Jun 15;165(12):1343-50.

Mourier, A., et al. Mobilization of visceral adipose tissue related to the improvement in insulin sensitivity in response to physical training in NIDDM. Effects of branched-chain amino acid supplements. Diabetes Care. 1997 Mar;20(3):385-91

Robinson, D.L. No clear evidence from countries that have enforced the wearing of helmets. BMJ 2006;332:722-725 (25 March)