The document defines key terms in web technology such as internet, intranet, extranet, web browser, web page, website, hypertext, HTML, and search engine. It also outlines different types of websites including portal, news, informational, business/marketing, educational, entertainment, advocacy, blog, and personal websites. Finally, it distinguishes between static websites that display fixed content for all users in HTML and dynamic websites that can display different content and enable user interaction using programming and databases along with HTML.