I maintained a regular Facebook profile page for years and plenty of students would "friend" me to keep track of what was happening in Peabody Hall. I had no interest in tracking them or seeing what they were up to, so I rarely logged in to use the my profile. I set it up to automatically pull content from this blog and my twitter feed.
Facebook pages obviously make it far easier for me to share content without giving me a window into a student's private space. So, I shut down my Dean J profile and created a Notes from Peabody Facebook page. Updates from the blog get posted there, but I also post things that you'll only see on that page.
So, if you'd like to keep up with Notes from Peabody via Facebook and see some extra content (mostly behind-the-scenes pictures), you can like the page.