1) When you make an update in the Facebook, there is a share option on the right corner you can select the people you like to share the update by selecting “Friends only” “Everyone” or any specific “lists”. When you share it with “Everyone” even the non Facebook users can view it. It is available in the open web.
2) Control what people can see when they visit your profile, by changing it in the Privacy Settings. The best thing to do is remove what people can see outside Facebook about you completely. This can be done by unchecking the “Public Search Results” under “Privacy Settings – Search”.
3) Audit your likes
4) Control what friends can share about you through applications
5) Third Party Applications
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