This story from the Salem News highlights the advantages of Residential Leed Certification:
There are many selling points that can be used by contractors to encourage homeowners to consider environmentally friendly green measures that can be used in new construction and renovation work.
I also know a BAGB (Builders Association of Greater Boston) member who started a business doing environmental assessments for homes. This is the wave of the future. The more you learn about it, the more you can use your knowledge of green construction in marketing your company and doing good work.