Joint Photographic Experts Group. This is a file format for the storage of graphics in a computer file. JPEG and GIF are the dominant graphical file formats on the web. Any text or graphic on a web page that, when clicked upon with the mouse, sends the user's browser to another part of that page or to a new web page. Text links are normally blue and underlined, but in any case tend to be a different color from the regular text.
Text links tend to change color after being clicked.
Graphical links sometimes have a blue border around them, but usually don't. One sure way to tell if you have a link is if the cursor changes to a pointing hand icon when passed over it. A user can join a list and post messages to it. The messages are gathered up and e-mailed to every other member of the list. Mirror sites were developed after heavy traffic slowed access to popular locations on the WWW .