http://agiletribe.purplehillsbooks.com/

http://social-biz.org/

I will NOT be adding any links to external pages that explain my answers because someone decided that would be self promotion and deleted all my answers that made such links. It was in fact helpful information and most cases was marked as being my blog post, but I guess we don't want that at Stack Overflow and so we won't have it. Doesn't hurt me at all -- I already know the links -- just feel sorry that I can't give the best answers.