Robert Brink offers a take on the different approaches made by skateboard manufacturers to recycle wood waste. Unfortunately, I think the elephant in the corner of the room regarding skateboard waste, is the lack of available sources to recycle used skateboards and wheels.  As a shop, I always try to save old boards for kids in need but there is always a point where the board breaks or becomes unusable because of wear.  So, eventually everything that goes into skateboarding ends up in a landfill.

As of now, there are only a couple of options for companies to re-use their waste wood.  

http://robbrink.com/2005/11/11/wood-recycling/

He also has an article about urethane recycling.

http://robbrink.com/2005/11/11/urethane-recycling/

Vehicle Skateboards just released a run of recycled skateboard decks.  The jury is out on the quality, but I applaud the effort.  

http://www.vehicleskateboardsltd.com/home.html