I hear a lot about the default privacy settings on Facebook being too open and that third parties can get hold of my private information. What can I do to lock down my account so that only the people I explicitly permit can see my photos and personal information short of deleting my account?
When logged into Facebook, choose Account->Privacy Settings. Select "Friends Only" on the left and apply the settings. Alternatively, you can choose the "Customize settings" link and further refine your privacy.
Once you've made the appropriate changes, visit http://www.reclaimprivacy.org/ (Edit: Dead Link) to have it scan your settings and make sure you have everything set up correctly.
Read this -> Recommended facebook privacy settings june 2011 (Edit: Content removed)
Does not get more recommended than that after all it is the US Navy Social Media.