I mentioned the company that I work for in one of my recent posts and damn if Google didn't pick it up. I know I have said before that my blog is there for the world to see and if someone finds it I will welcome them with open arms.
But... when you work for a large company and many of the senior leadership are set up with Google Alerts to monitor our online presence and you are blogging for the company - a personal blog popping up in a Google Alert is not the most professional thing. If I didn't have to worry about my work blog's integrity then I would roll with it. So my blog is temporarily private.