MIT has improved on the bicycle wheel. Check out the CNET article and video here.
Green chemistry, also known as sustainable chemistry, is the design of chemical products and processes that reduce or eliminate the use or generation of hazardous substances. Green chemistry applies across the life cycle of a chemical product, including its design, manufacture, and use. Read more at the EPA Green Chemistry Home page.
If you are looking for information on connections between buyers and sellers of recyclable plastics, you might want to try PlasticsMarkets.org. They say that the site is NOT intended for the general public or household plastics, but if enough folks show an interest in that kind of information they may realize that they need to move in that direction. The site is developed and hosted by Moore Recycling Associates.