Be careful about strangers on the Internet.

If anyone uses nasty language or mentions things that make you uncomfortable, don't respond and log off.
 

Never give your real last name, address, or telephone number to anyone; if someone asks for this information
(or for your password) , don't respond. Log off and tell a trusted adult.
 

Never agree to meet with someone you've talked with on the Internet without asking permission from your parents first.
 

There are places on the NET which are for adults only; if you find yourself in an "adults-only" place, or anywhere you think you shouldn't be, leave!