HHS recently posted their draft guidelines for using Twitter and YouTube at http://www.newmedia.hhs.gov/. Just in time for Fall flu season and the likely return of H1N1.
Here's my quick take: The guidelines may strike some as not really "getting" social media (e.g., advice to not respond to media inquiries via Twitter and potentially having each tweet approved by a manager), but definitely a huge step forward.
I'm currently conducting a study analyzing how corporate and government organizations responded to the first phase of H1N1 via social and traditional media and will have more thoughts to share on this topic in the coming months.
What do you think? HHS is asking for feedback on their social media response to the H1N1 outbreak here: http://www.newmedia.hhs.gov/comment/h1n1flu.html.