One of the four sides of the square does mention Relationship. Trust in the online environment is a complex issue. It should not be taken lightly.
The text about the stag as mentioned in Jenny’s blog is found in http://mixtmodeblog.wordpress.com/2013/02/12/facilitating-groups-online-understanding-personalities/
About courtesy in online communication, cultural differences do cause misunderstanding and uneasiness. Like the preferred distance between two talking humans is different in different subcultures and cultures. There is no universal agreement about Norms in online communication.
Some humans are online and they want to talk about facts and opinions without care about relations. Factual information is the only thing that matters to these humans.
Online community has to be more than shouting out facts or opinions to the internet.
I did add the category “connectedcourses” to this post, to be able to share the blog to that course. It is not written for that course, but connected to its theme.