As I am preparing for an panel in a few weeks at the NTEN conference about this very subject http://bit.ly/ntcsocmedpolicy . I've discovered it has been a hot issue for many nonprofit organizations in addition to the companies who are "protecting" their brand image.

The connection between the individual personal brand and an "entity" brand is a very thin line. Both want to have a positive point of view if/when the employee separates from the employer. Is a disclaimer the answer?

I do believe a lot of this has to do with trust or let's say the lack there of. What companies or nonprofits haven't completely realized is that they don't have a high trust factor for some. Much of it is due to the nature of trying to ensure the organizational/Corporate agenda is achieved by checking off all of the to do's on the list. When some of those to do's come in conflict with individuals/personal concerns some times the motto is " the good of the many over the few", and this is were the trust is lost.

Personal brands can protect the image of the few. So the battle begins, who should have the positive brand image in the end. No one will truly know.
Social media policies and disclaimer 2.0 is one way to go but this battle isn't over because solving these problems will be determined on a case by case basis and these policies will continue to evolve just as social media changes.