A collaboration tool helps people to collaborate. The purpose of a collaboration tool is to support a group of two or more individuals to accomplish a common goal or objective. Collaboration tools can be either of a non-technological nature such as paper, flipcharts, post-it notes or whiteboards. They can also include software tools and applications such as collaborative software. Collaboration tools before Web 2.0 The first idea to use computers in order to work with each other was formed in 1945 when Vannevar Bush shared his thoughts on a system he named"memex" in his article "As We May Think". A system that stores books, records and communications of an individual and makes them available at any time. At this stage he called it "an enlarged supplement to his memory". Computerized office automation In 1968 computer systems were brought in connection with communication and the potential way of working together when not at the same place by Dr. J. C. R. Licklider, head of the U.S. Defense Advanced Research Projects Agency (DARPA)....