Overview of all keyword tags in articles

WebCT (Course Tools) or Blackboard Learning System, now owned by Blackboard, is an online proprietary virtual learning environment system that is sold to colleges and other institutions and used in many campuses for e-learning. To their WebCT courses, instructors can add such tools as discussion boards, mail systems, and live chat, along with content including documents and web pages. The latest versions of this software are now called Webcourses. WebCT is significant in that it was the world's first widely successful course management system for higher education. At its height, it was in use by over 10 million students in 80 countries. (Excerpt from <a href="http://en.wikipedia.org/wiki/WebCT">Wikipedia article: WebCT</a>)