How does an individual or classroom connect with other universities on the platform?

I find this to be a great feature when speaking of topics of global importance. One way of doing this is by using your own professional network and create a group in collaboration with another professor you know that is teaching a similar subject to yours. Now having created a virtual classrom with students from two different universities, fruitful discussions can be held on the topic with completely fresh insights and knowledge about another country. For instance, a class in Germany might be learning about health care in the USA and vice versa. What better way to learn than from the people themselves?