303 Cycling: Boulder/Denver cycling news http://303cycling.com/
Bicycle Colorado: http://bicyclecolo.org/ To encourage and promote cycling, increase safety, improve conditions and provide a voice for cyclists in Colorado.
Boulder County Parks and Open Space: http://www.bouldercounty.org/find/maps/pages/parks.aspx Want to know how to get to a trail in Boulder County? This interactive map will answer most of your questions about ‘how to get there’.
Colorado High School Cycling League: http://www.coloradomtb.org/ The Dirt Divas Race Team will be doing some volunteer support of this organization during high school races. What an awesome way to encourage our youth in such a tremendous sport!
Colorado Trail Foundation: http://www.coloradotrail.org/ Volunteer for keeping our trail intact!
Community Cycles: www.communitycycles.org/ is a non profit bike collective that accepts old used bikes in Boulder and uses them to teach bicycle mechanics.
Jeffco Open Space: http://jeffco.us/openspace/openspace_T56_R108.htm
Trips for Kids Denver/Boulder: http://www.tripsforkidsdenver.org/ Known for their “Take a Kid Mountain Biking Day” plus other events that get kids on bikes!