I’m sure you all know about these, but just in case, here are a few good sites to check every now and then (in no particular order):

NY Times “Energy and Environment” tab under the Business section:

http://www.nytimes.com/pages/business/energy-environment/index.html

Within that section, the Green, Inc. “blog” of sorts:

http://greeninc.blogs.nytimes.com/

(there are a lot more at the bottom of the greeninc. blogs page too)

http://www.treehugger.com/

http://www.grist.org/

plus a little extra from the president:

http://www.whitehouse.gov/agenda/energy_and_environment/

Please feel free to comment and add more, I’m always interested in finding new sources!