Great article in the Spring 2010 issue of Triathlon Life, the magazine of USA Triathlon http://www.usatriathlon.org/ on some options in lieu of throwing away used gear.
One of the companies mentioned is BolderPath http://bolderpath.com/home/ , which is a company that will take back old triathlon gear of all types and then manufactures bags, briefcases, wallets, drybags and other products out of them. Very cool.
Run the Planet has a webpage listing Shoes Recycling Programs. For those who do believe in the reincarnation of running shoes, they compiled a list of recycling programs around the world. They have a variety of programs with website and contact info for programs all over the world, including Nike’s Reuse A Shoe, Up & Running in the UK, Recycled Runners in NZ, and others. Check out their webpage at: http://www.runtheplanet.com/shoes/selection/recycle.asp .
FitPlanet consults with race organizers to minimize their impact before, during, and after events and offers a list of races who have signed a FitPlanet Pledge of Sustainability that provides event organizers with formal and public recognition for taking steps to become more environmentally responsible. Events must pledge to adopt a minimum of 10 eco-Practices to qualify. Check them out at http://www.afitplanet.com/ .