Personal information on Websites

 How safe is to give your personal information on websites such as facebook, instagram my space and any others? What’s the limit for you?P

I think is very dangerous for the people, because we don´t know who will see our personal information, and if this person (or persons) wants to do us some damage. I deem that the limits of personal information are only the name for identify the person, because are the friends or family members, only they know where to contact you, I don´t deem that it´s good to upload private images, either information of where you are from and where you are in this moment.