I've removed all the external links from here, as there wasn't anything of particular value or relevance. In some cases they can go to more specific pages ([Green cooking]], Self-sufficiency).
I removed commercial links that don't seem to offer much of interest. They can be reinserted with a more precise link to informative pages, if they exist. --Chriswaterguy 05:47, 9 June 2010 (UTC)