What is Netiquette?
Netiquette is short for "Internet etiquette." Just like etiquette is a code of polite behavior in society, netiquette is a code of good behavior on the Internet. This includes several aspects of the Internet, such as email, social media, online chat web forums, website comments, multiplayer gaming, and other types of online communication.
While there is no official list of netiquette rules or guidelines, the general idea is to respect others online. Below are ten examples of rules to follow for good netiquette:
The Internet provides a sense of anonymity since you often do not see or hear the people with whom you are communicating online. But that is not an excuse for having poor manners. In summary, good netiquette benefits both you and others on the Internet. Posting a positive comment rather than a negative one just might make someone's day.
from TechTerms.com