Cached files are those that are saved or copied (downloaded) by a web browser so that the next time that user visits the site, the page loads faster.

An on-line text-based communication between Internet users.

According to Google cloaking is "a website that returns altered webpages to search engines crawling the site." In other words, a human reading the site would see different content or information than the Googlebot or other search engine robot reading the site. Most of the time, cloaking is implemented in order to improve search engine ranking by misleading the search engine robot into thinking the content on the page is different than it really is.

A method of reducing the size (compress) of web documents or graphics for faster delivery via the web.

A computer program that can harm a computer by displaying messages, deleting files, or even destroying the computer's operating system.

A word you'll likely see around a lot is "web content" and by definition, content is the 'stuff' that makes up a web site. This could be words, pictures, images or sounds. In essence however, when we talk about web content, we are essentially referring to content in a textual nature. Content therefore is the 'information' in text form a web site provides.

Also known as a CMS, the Content Management System is a backend tool for managing a site’s content that separates said content from the design and functionality of the site. Using a CMS generally makes it easier to change the design or function of a site independent of the site’s content. It also (usually) makes it easier for content to be added to the site for people who aren’t designers.

Information from a web server, stored on your computer by your web browser. The purpose of a cookie is to provide information about your visit to the website for use by the server during a later visit.

A simple mechanism for adding style (e.g. fonts, colors, spacing) to Web documents. Not all browsers (of specific versions) implement the full specification of CSS.