Sorry Dave, missed your question to MYM there: all staff are welcome to create their own social media policy for work purposes-- they are our first names and mym as our last name. There are rules around this profile, but generally, it's used for connecting with our youth. Twitter is allowed too, but now one has opted for one yet. People do retweet us, etc from their home accounts, but generally regardless of occupation, if you use your name, you can be held accountable for things stated in off hours. Anything tweeted from our main mym accounts is routed through me, however.
It's easier for us to know because we don't offer counselling. Deirdra, I agree that boundaries for clinicians are more difficult to maintain (are arguably, much more important). It all comes down to what you as the clinician are comfortable with, I think. If you're going to go out into the social media sphere, you need to be very upfront with your clients and on your sites with what the purpose is and what is acceptable.
Also, the links here to policies are awesome. Thanks for sharing, everyone!