Use caution when you click links
Know what you’ve posted about yourself
Don’t trust that a message really is from whom it says it’s from
To avoid giving away e-mail addresses of your friends, do not allow social networking services to scan your e-mail address book
Type the address of your social networking site directly into your browser or use your personal bookmarks.
Be selective about who you accept as a friend on a social network
Assume that everything you put on a social networking site is permanent
Be careful about installing extras on your site.
Think twice before you use social networking sites at work.