What is "netiquette"?

The word netiquette is composed of network and etiquette. As we can understand these two words, netiquette means the rules on the Internet. However, when we use the Internet, we must observe some rules. Firstly, we must not put any private information on it. Because　every person can watch on it, so that is dangerous. Next, we should not tell anyone bad words. We can't know the person to whom we talk, so be careful to pick up some words! If you can observe these rules, you can use the Internet happily.