This document defines and provides brief histories of common online terminology including email, blogs, online chat, social bookmarking, URLs, streaming, podcasts, VoIP, wikis, social networks, the World Wide Web (WWW), HTML, and web feeds. E-mail was created in 1954 while blogs, online chat, social bookmarking, URLs, and streaming originated in the 1980s or 1990s. More recent technologies introduced include podcasts (2004), social networks (late 1990s), and web feeds (no date provided). The document provides short descriptions of the purpose or use of each terminology.