getting started with facebook for journalists
Wall and News Feed Privacy Settings
You have control of what goes out to your Facebook friends as a news item originated by you.
The above Wall and News Feed privacy settings shows what will appear by your choice on your Wall and in your News Feed that goes out to your friends. These setting are for "news" originated by you and actions that you take.
Note on the right side in the Wall and News Feed privacy settings is a list of actions that are never part of your News Feed and will never appear on your Wall.