I have written several times about environmental impacts of electronics. Occasionally, people need to buy new electronics but how do you find the environmental impact of what you buy? The Electronic Product Environmental Assessment Tool may help.
The EPEAT is a registry of products that meet criteria established with the IEEE which you may know from various electronic standards like the firewire or WiFi. They have companies register their products and certify that they meet the criteria while EPEAT does testing of some products. More details about EPEAT and their criteria can be found on their website. It also appears that they work with the U.S. government on purchasing and in conjunction with the EnergyStar program which adds credibility for consumers. I think this is a great tool and the more information that people have the better purchasing decisions will be.