Its a good basic site. Do you really do all that stuff ? I like the idea of "green" living, but not too radicalized. I found a few spelling errors if you want, on http://www.usgreenliving.com/site_map.html I will tell you about them here or if you PM me. [ Some get , so I ask first ]
The design is very basic, you might get more credibility with a better design - either 'web 2.0' or a warmer, more attractive/appealing design with more color, pictures, graphics, etc. Showcasing some of your content would be a good idea, too. Latest articles, top rated, etc. You've got plenty of space for an additional column if you want to put it in there.
Alternative Health Articles does not have the javascript the other sites have. In firefox this seems to be causing the page to be aligned left and not centered like your other pages.
oh yeah, it could also use a little more color...like a green theme? The white background is good for the text but its just looks so plain.