Friends and followers

By adding and/or confirming a friend on Facebook you mutually agree that you know each other. Many times this is still not the case, but there is no way for Facebook to figure this out. You’re either friends with somebody or you’re not. It could be a good idea to limit the access to your information for some of your not so close friends. And this requires some work. Don´t underestimate the value of categorizing your Facebook friends into various lists. Rather create small and targeted lists than big and generally applicable. This will make it easier to control your communication. To make sure you don’t get stalked on Twitter you can choose to protect your tweets in the settings.

Related article:
Facebook Privacy Settings

Groups

When joining a group on Facebook check its settings. Is it public? Can anyone join? Does it have an administrator? This is important for several reasons: A public group will show on your profile. It can also be viewable to anyone, which means everybody can see all the members of the group. An open group that has no administrator can easily be taken over by anyone. The consequences of this may be devastating for the members. If you create a group you should consider the following aspects of security: Every person you grant administrator rights can change every setting option for the group, including the group’s name. The group will be open and public unless you change this in the settings.

Pages

When becoming fan of a page on Facebook be aware of the fact that anyone can see that you are a fan.