Web 2.0 tools have made the Internet a 'platform' as opposed to the 'medium' it once was. We used to do our work on our desktop computers and then used the web to send it to someone or to post it as a personal web page. Now we do our work ON the web. The platform changed from being our desktop computer to the web. Now, with web 2.0 tools we can do almost anything we can imagine, and share it with the world.
A New Frontier: Web 2.0 Tools
Wiki - The simplest online database that could possibly work. Wiki is a piece of server software that allows users to freely create and edit Web page content using any Web browser. Wiki supports hyperlinks and has a simple text syntax for creating new pages and crosslinks between internal pages on the fly . (http://www. wiki . org/wiki . cgi ? WhatIsWiki )