Currently, there are large numbers of Facebook users. Facebook has both advantages and disadvantages. If we use it correctly and not to protect yourself may cause damage. Therefore, there should be a tip to help guide what to do so that it can protect us. I think the author of the good can be used as a guideline. What should be added, namely, should instruct users that Facebook should not post words or images that are not appropriate, because everything that is posted out to it can be saved.
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