This article deals with Server Side Includes, usually called simply SSI. ... SSI (Server Side Includes) are directives that are placed in HTML pages, ...
http://httpd.apache.org/docs/1.3/howto/ssi.html
Server Side Includes - Wikipedia ...
Server Side Includes (SSI) is a simple server-side scripting language used almost exclusively for the web. As its name implies, its primary use is including ...
http://en.wikipedia.org/wiki/Server_Side_Includes
The Server Side Includes Tutorial
Server side includes (SSI)s applied to an HTML document, provide for interactive real-time features such as echoing current time, conditional execution ...