When thinking of a subject to my last post of this course I started to think about what groupware tool or site I use the most in my studies. Then I came to think of Moodle itself.
It is an open source course management system that is also known as virtual learning environment. It is used as a tool for creating dynamic web pages for students. Moodle is used all around the world by universities, schools, companies and independent teachers. It needs to be installed on a web server and it is pretty easy to learn.
What makes Moodle more collaborative software are its activity modules, such as forums, databases and wikis. They build communities around a certain subject to promote collaborative learning. I've used Moodle's forums actively only in few courses, but it's good to be there in case one has a question that they want to be answered. Some courses only use Moodle to deliver content to students and help learning with different assignments and quizzes.
I like Moodle because it puts all course information in one place and I always know where I should go to find course materials.
References:
http://moodle.com/?moodlead=moodle.general
http://moodle.org/about/
I believe that the moodle has even more features or at least possibilities than any teacher has used at our university. Just like every other tool. They've got loads of features, but only some most important ones are usually used. :)