The bicycle is becoming an important mode of transportation for completing transportation networks in cities.  It is a cost-effective mode of transportation that is very effective at completing the common range of 5-15 blocks between transit hubs.  In small towns, such as Buena Vista, Colorado, where transit is not available, nor feasible, the bicycle remains as one of the few non-automobile modes of transportation.  Last summer when vacationing in South Main, I used the bicycle more frequently than all other modes of transportation in the highly pedestrian-friendly neighborhood and town.

Denver's bike sharing program provides connectivity to the transit system.

Bicycle sharing programs have been added to cities all of over the United States. Denver, Colorado added the B-Cycle program to its arsenal of mobility one year ago, initially targeting the major hubs such as the Colleges and downtown.  There are currently 500 bikes and 50 bicycle stations in Denver.  For a readable map of the bike stations in Denver, click this link.
Other more primitive bicycle sharing programs exist such as the Yellow Bike Program at Colorado College, directly north of downtown in Colorado Springs.  This program utilizes bicycles salvaged from the waste streams that are fixed up in an educational do-it-yourself environment run by the students of Colorado College.  The following is an excerpt from the College’s Sustainability website:
The Yellow Bike program is a community bike-sharing organization, started in 2008 by students. CC students can buy one-time $15 memberships and receive a universal key that allows access to 12 yellow bikes around campus.”
Watch for the upcoming related blog post: Bicycle Infrastructure