Netiquette refers to etiquette on the Internet. It is the code of acceptable behaviors users should follow while online. Some key rules of netiquette include being polite, using appropriate language, avoiding spam and flames, respecting privacy and copyright, and being mindful of how sarcasm and humor can be misinterpreted without nonverbal cues. There are 13 rules outlined related to email, online chat, and newsgroups to guide positive and respectful social interaction and communication electronically.