Economic Impacts of Bicycling Investments
       http://www.bikeleague.org/resources/reports/report_economics.php

American Community Survey Bicycle Commuter Trends
       http://www.bikeleague.org/resources/reports/acs_commuter_trends.php

Bicycling and Walking in the United States, 2010 Benchmark Report
       http://www.peoplepoweredmovement.org/site/index.php/site/memberservices/C529

Active Transportation for America
       http://www.railstotrails.org/resources/documents/whatwedo/atfa/ATFA_20081020.pdf

The Surgeon General's Vision for a Healthy and Fit Nation
       http://www.surgeongeneral.gov/library/obesityvision/obesityvision2010.pdf
 

Centers for Disease Control and Prevention
       http://www.cdc.gov/nccdphp/dnpa/physical/health_professionals/active_environments/index.htm

Tennessee Department of Health - Get Fit TN
       http://www.getfittn.com

Active Living Resource Center
       http://www.activelivingresources.org/index.php

Pedestrian and Bicycle Information Center
       http://www.pedbikeinfo.org

Complete Streets
       http://www.completestreets.org

National Center for Safe Routes to School
       http://www.saferoutesinfo.org

Active Living by Design
       http://www.activelivingbydesign.org

Active Living Research Center
       http://www.activelivingresearch.org

National Center for Bicycling and Walking
       http://www.bikewalk.org