Netiquette comes from the mix of the words: Network and Etiquette and it refers to the norms or rules for online communication.
"The Rules of Netiquette are social norms that individuals choose to follow facilitating effective communication on the internet. There are many accepted internet etiquette rules users follow for many different reasons. The core rules of netiquette are the most agreed upon netiquette rules." From: http://networketiquette.net/netiquette.htm
