This document defines key terms related to web integration and the internet. It discusses URLs, protocols, browsers, plug-ins, networking protocols, hosting, the differences between the internet and the web, common web uses, and the functions of the web browser. Key terms explained include URLs, protocols, browsers, plug-ins, IP addresses, DNS, hosting, internet service providers, HTTP, FTP, and more. The document provides definitions and explanations of these important concepts for understanding how the web works.