If you have ever set a web server, you are probably familiar with the Apache start up web page. You got goose bumps to know that you have a server to play/work with.
The you decide you want to do your own web page and it might look something like this.
You want some a little more splashy so tyou go to www.w3schools.com.com for some hints and then your web page becomes a bit more interesting.
You keep adding content and before long your start page may look something like this:
Quite a change! http://www.instructables.com/id/Introduction-to-installing-web-apps/