Guard your contact information. Don't give people you don't know your cell phone number, instant

Guard your contact information. Don't give people you don't know your cell phone number, instant messaging name or e-mail address.
If you are being harassed online, leave the area or stop the activity. Immediately tell an adult you trust.
If you are being bullied through e-mail or instant messaging, block the sender's messages. Never reply to harassing messages.
Save any harassing messages and forward them to your Internet Service Provider or e-mail provider (example: Hotmail or Yahoo). Most ISPs have appropriate-use policies that restrict users from harassing others over the Internet.
If the bullying includes physical threats, notify police.
Speak out whenever you see someone being mean to another person online. Most teens respond better to criticism from their peers than to disapproval from adults.