This document defines and provides brief descriptions of common internet and web-related terms such as email, wikis, social bookmarking, podcasts, HTML, VoIP, online chat, the World Wide Web, streaming, blogs, social networking, URLs, and web feeds. It explains what each term refers to, such as that email is the electronic sending and receiving of messages, wikis allow users to freely create and edit web page content, and social bookmarking involves users recommending websites to each other.