Portalfuze's Social Media blog has published a white paper on Nonprofits and Social Media. It starts from ground zero, defining social media and how it relates to nonprofits. Portalfuze is a business, and as such they pitch their own expertise/offerings in enterprise level social media tools. Some of the language and organization tend towards "consultant-speak", but, it can be read also as one company's strategic thought process in how to do needs analysis for your organization. So...if you like wonky style white papers, this could be a useful primer.