JavaScript
A scripting language for Web pages which can be embedded into HTML documents. JavaScript was designed to resemble Java, which in turn is a lot like C and C++.The difference is that Java was built as a general purpose object language, while JavaScript is intended to provide a quicker and simpler language for enhancing Web pages. (see HTML)

JPG, or JPEG (Joint Photographic Experts Group)
JPG is one of the two most popular image formats used on the Internet. It is used for photographs and other continuous tone images. It supports 24-bit (16.7 million) colour but does not support animation or transparency. (see GIF)

Keyword
The term or phrase that a user types in to begin an online search. Keywords are a series of words which help the search engines readily identify and index a Website. These are often contained in the meta tag of an HTML document. (see HTML & Meta tag)

LAN (Local Area Network)
A LAN is a system linking computers within a building or within one organization. Computers that are part of a Local Area Network can all share information from a central source.

Lossy & Lossless
Two compression techniques used for reducing the size of an image. Lossless techniques throw away redundant bits of information without affecting the quality of the image. Techniques, such as JPEG, make files smaller, but they throw out image quality in the process.(see GIF & JPG)

ListServ
A type of automated mail distribution system, Listservs allow you to automatically subscribe to a mailing list and receive email about specific topics. To subscribe to these groups, you typically send email to the Listserver and say something like "SUBSCRIBE ...." in the body or subject of the message. A computer will interpret your email, and add you to the periodic mailing list