Great point Barbara - here's another area where the move to internal social networks like blogs and wikis can really benefit the government. They can help get all of that data out of their heads and onto a platform so that when they leave, there isn't this issue of "brain drain." Maybe a talent drain because you're losing a top performer, but there should no excuse for data loss because someone retired. Now, in doing this, you're also infringing on the time-honored tradition of "job security" - if you're the only one who knows how to do something, how are they going to fire you, right? If you put all of that data/knowledge/best practices onto a wiki, then anyone can do it and you'll be left without a job. We need to address these issues first before we can address the issues of knowledge transfer.