Richard Jurin, a North American environmental educator, has a new blog that focuses on sustainable living.  As Richard puts it:

Thoughts on what it really means for humanity to live sustainably: a blog for discussion on the reality of a vision for living sustainably with health, happiness, and well-being

See this for greater detail.  Recent posts include:

You might start reading here (at the first post) with a definitional sort of view on what sustainable living means, or go to see the full range of recent posts.