Human Powered Race America
The only racing series in the United States for recumbent and Human Powered Vehicles (HPVs). Includes events calendar, overview and history, along with information regarding the .deciMach Prize For Human Powered Speed.
http://www.recumbents.com/hpra/

Quadcycles
Focused on the proliferation and improvement of the "4 wheeled bike." Features links to manufacturers and related resources to earth conscious types of transportation.
http://www.angelfire.com/wa3/quadcycles/index.html

Dan Speas' Variable Exercise Bicycle
Offers overview and photo gallery of a cable-driven bike with independent pedals and an infinite array of gear ratios. It is useful as a rehabilitation tool. Features videos on the bike and riding.
http://www.vcasa.net/bike

Kinetic Sculpture Links
Links to photo galleries, descriptions, artists and active Kinetic Sculpture Race sites in the U.S. and worldwide.
http://ebeltz.net/niftylinks/ksrlinks.html

Cycle Rickshaw Innovation
An idea for modernising cycle rickshaw or human powered vehicle. Reduces operator fatigue by converting sideways movement into forward momentum.
http://members.fortunecity.com/vu2bxd/rickshaw.htm

Bicycle Trailer
Demonstration of practical human powered bicycle transportation: a cargo trailer for use behind a bike.
http://www.acclivity.ca/kompressor/trailer/testing2.html

June Moxon Braised Brass Sculptures and The Kinetic Sculpture Race
The sculptures race at events throughout the USA. Judged for art, engineering, pageantry and speed, these vehicles race on mud, pavement, sand, and water.
http://www.angelfire.com/art2/junemoxon/index.html

Bike Design for Engineers
Bike design at CALPOLY San Luis Obispo. Includes background on the first human powered helicopter as well as student bicycle designs.
http://www.calpoly.edu/~wpatters/

Surreys by Tecnoart of America, Inc.
Manufacturer of four-wheel pedal-powered cycles known as surreys. Offers products for sale and surrey rental business opportunities.
http://www.tecnoartsurrey.com

Human Powered Equipment and Transportation
The discussion of any type of equipment or transportation using human muscles, usually leg muscles with cranks and chains. This includes generators, mills, drills, presses, boats, planes, and land vehicles.
http://www.green-trust.org/2000/humanpower.htm

Human Powered Vehicle - University of Southampton
Details the University's bid to break the human powered vehicle land speed record.
http://www.hpv.soton.ac.uk

Trans Canada Human Powered Speed Record HPV
Details one man's quest to break the trans-Canada speed record.
http://www.adventuresofgreg.com/

Champiot
A four-wheel rowing exerciser. Videos, specifications, pictures, and how to order.
http://www.champiot.com/

Team Y-knot's Kinetic Sculpture Site
Contains pictures, movies and commentary of their projects. The first sculpture, Chips N Dips, ran in the 2002 Arcata to Ferndale Kinetic Sculpture Race.
http://teamyknot.home.comcast.net/

Workbikes
Information on industrial-use HPVs including cargo haulers and pedicabs.
http://zerocouriers.com/workbike/