I was asked to give a presentation for the From Courses to Dis/Course online conference last week, and chose the topic of identity as it relates to openness. My session, Identity in the Open Classroom, was a fun (for me, anyway) exploration of the issues, and I think served the purpose of framing discussion.
Here's the video of the recording from the session:
the full chat transcript for the session is available, as well as the full Elluminate session recording.
and the slide that wound up framing much of the question and answer portion: