This document provides definitions for internet and advertising terminology in a glossary format. Each term is defined in 1-2 sentences and an example sentence is provided. Some of the terms defined include ad space, AJAX, applet, avatar, bandwidth, blog, blogger, broadband, browser, buffering, caching, chat, click, cookie, CPC, CRM, domain, drill down, dynamic ad placement, dynamic rotation, expandable banner, firewall, flash, FTP, hit, HTML, impression, information architecture, IP address, JavaScript, jump page and more.