Other members of the Pittsburgh center note that independent certification programs in forestry and seafood have had some success.

WSJ: Sierra Club blasts new plan to improve fracking

More detailed rating systems and independent certification could help. eLance already gets buyers to evaluate sellers in several categories, such as timeliness and responsiveness.

ECONOMIST: The Internet: At your service | The

The NFLPA also said it has asked the league for independent sideline concussion experts, the certification and credentialing of professional football medical staff and better worker's compensation.

CNN: STORY HIGHLIGHTS

That committee, known as the International Commission for the Certification of Dracunculiasis Eradication, makes independent evaluations and recommends to the WHO's director general whether to declare eradication.

CNN: Guinea worm a greater challenge than smallpox

To receive B Corp Certification from B Lab, an independent, non-profit organization (I am a co-founder of B Lab), method had to submit to a comprehensive, comparable, and transparent examination of all of its products, its practices, and its impact on all of its stakeholders, including workers, community, and the environment.

FORBES: No Sustainability Without Transparency!