20 years ago, on April 30, 1993, a service called the World Wide Web was opened to the public for no cost. Sir Tim Berners-Lee was the person behind this at the European Organization for Nuclear Research (CERN). They are trying to bring back the very first web site. The early goal of the web was to make hypertext of all the worlds knowledge.
At the time, I was "into" bulletin boards. Little did I know how this "Web" would almost destroy BBS's. Today, this web thing is everywhere. While there is a long way to go to put the worlds knowledge on the web, a significant chunk of important information is easily available. Its like having a library and encyclopedia at your beck and call (as long as your web connection is stable, but thats a post for another day).