Netiquette refers to etiquette guidelines for online communication and interactions. It covers both formal and informal conventions for sharing information over the internet through text, audio, graphics and video. Netiquette functions to keep internet communication useful and civil by establishing rules such as avoiding spamming others and respecting people's time and bandwidth. Following netiquette ensures positive online interactions and helps present a good online image and footprint through considerate and appropriate online behavior. Specific guidelines address synchronous communication, written communication, and core rules like remembering the human on the other side, respecting privacy, and controlling flame wars.