A file object that is placed on a Web page or in an e-mail message to monitor user behavior. Unlike a cookie, which can be accepted or declined by a browser user, a Web bug arrives as just another GIF or other file object. 

A camera attached directly to a computer, whose current or latest image is requestable from a Web site. A live cam is one that is continually providing new images that are transmitted in rapid succession or, in some cases, in streaming video. 

The reduction in size of data in order to save space or transmission time. For data transmission, compression can be performed on just the data content or on the entire transmission unit (including header data) depending on a number of factors.

Web conferencing refers to a service that allows conferencing events to be shared with remote locations. These are sometimes referred to as webinars or, for interactive conferences, online workshops. In general, the service is made possible by Internet technologies, particularly on TCP/IP connections.

The entire content of a website that contributes to the user experience. It includes texts, images, sounds, videos, and animation.

The act of planning, creation and updating of websites. It involves all aspects of design that contributes to the graphical user interface of the website, including information architecture, website structure.

Tools that enable create images, flash files and write HTML, Javascript and CSS to create beautiful web pages.

A web developer is a programmer who specializes in, or is specifically engaged in, the development of World Wide Web applications, or distributed network applications that are run over HTTP from a web server to a web browser. They are in charge of constructing and designing websites while adding the various complementary applications in them. For instance, if a client requires a site to be able to process sales merchandise orders, web programmers have to code and mark up such technical aspects into the site. Web programmers may also apply more complicated codes such as Python or C++.

A term used to describe the activities involved in developing a web site for the Internet or an intranet. It can range from developing a simple static single page of text, to the most complex internet applications.

A program that can screen an incoming Web page to determine whether some or all of it should not be displayed to the user. 

The creative process of designing websites, images, logos, visuals etc that conveys a message to the target audience.

The business of housing, serving, and maintaining files for one or more Web sites. More important than the computer space that is provided for Web site files is the fast connection to the Internet. 

A framework and set of programming tools from IBM for the uniform creation and control of intermediary programs such as proxy servers, transcoding processors, and any kind of program that sits somewhere between two end points in a network. 

Webmaster Tools are those that allow webmasters to check indexing status and optimize visibility of their websites among search engines. Examples for renown webmaster tools are Google Webmaster tool and Bing Webmaster center.

The integration of information gathered by traditional data mining methodologies and techniques with information gathered over the World Wide Web. It is used to understand customer behavior, evaluate Web sites, and quantify marketing campaigns.

A web portal is most often one specially-designed Web page at a website which brings information together from diverse sources in a uniform way.