If people post coments on your profile that make you angry,
If a stranger adds you to his/her contact list,
If a person you meet online wants to know the name of your school,
If people say things that make you feel bad in a chat room,
If an internet pal wants to meet you in person,
If you receive e-mails from strangers,
If you want to write your profile on a personal site,
tell your parents.
leave the room.
don't reply.
use nicknames.
don't add him/her back.
delete them.
block those people.