Once an agency crosses over into social media interactions with other agencies and non-governmental organizations, the guidance gets diluted. The guidelines point to five government agencies, none of which are the definitive resource for social media implementations. These guidelines are a must read for any organization that is considering a foray into the Web 2.0 sphere…

http://information-security-resources.com/2010/02/25/federal-guides-for-social-media-security-pii/