Meme- a humorous image, video, piece of text, etc., that is copied (often with slight variations) and spread rapidly by Internet users. Virus- an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host. Viral- an image, video, advertisement, etc., that is circulated rapidly on the Internet. Blog- a regularly updated website or web page, typically one run by an individual or small group, that is written in an informal or conversational style. Wiki- a website that allows collaborative editing of its content and structure by its users. URL- the address of a World Wide Web page. Website- a location connected to the Internet that maintains one or more pages on the World Wide Web. WWW- The World Wide Web (WWW), also called the Web, is an information space where documents and other web resources are ide