There is a group called Renewable Energy Networks in LinkedIn that has ~36,000 members. One of the interesting columns on the discussion board is called "What advice would you give to a young person who wants a career with a green or sustainability focus?" Check it out!
A brief listing of some "Green Blogs":
One of our own Rider University bloggers: Brianna Kuhl: Kuhl It!
Dowser: Who is solving what and how
"At Dowser, we present the world through a ‘solution frame,’ rather than a ‘problem frame.’ We’re interested in the practical and human elements of social innovation: Who’s solving what and how. We want to know how people come up with ideas, how they put them into practice, how they pay the bills, and what fuels their fire."
New York Times blog discusses "How are climate change, scarcer resources, population growth and other challenges reshaping society? From science to business to politics to living, our reporters track the high-stakes pursuit of a greener globe in a dialogue with experts and readers."
Technorati's list of blogs
Over 5000 "green" blogs are listed with the top 10 movers listed on the bottom right hand side of its webpage.
This blog is lfound at the very top of Technorati's list of green blogs. "Grist is based in the Emerald City of Seattle, in the Evergreen State of Washington (both green!), with contributors scattered the world 'round. We are a nonprofit organization funded by foundation grants, user contributions, and advertising. Each day, we use our Clarity-o-Meter to draw out the real meaning behind green stories, and to connect big issues like climate change to daily life. We count on our users to bring their stories to the table, too -- through blogs, photos, and whatever else they care to share. Except Jell-O molds. Those things scare us."
"TreeHugger is the leading media outlet dedicated to driving sustainability mainstream. Partial to a modern aesthetic, we strive to be a one-stop shop for green news, solutions, and product information. We publish an up to the minute blog, weekly and daily newsletters, weekly radio interviews, and regularly updated Twitter and Facebook pages."
Check out TreeHugger's own list of blogs that have bried descriptions of each and covers a lot of territory.
List of blogs with annotations from Common Dreams: