... WelcomeGuest . ... Anyone can contribute using any web browser. TWiki looks like a normal web site... except that it encourages contribution and editing of pages, questions, answers, comments and updates. ... Viewing the history of a topic . ... From your browser you can change or add to anything you see in a TWiki topic. ... click Edit at the bottom of any topic and make your changes . click [ Preview Changes ] at the bottom to verify the topic (use your brower's Back button if necessary) . ...