Isn’t Second Life dead? Apparently not.
While you won’t be able to attend the live event online, there will be free access to the nano and ethics discussion held on July 20, 2012, from 1 pm to 4 pm EDT at the Terasem Island Conference Center in Second Life. The question and speakers were (from the July 20, 2012 event posting on the Kurzweil Accelerating Intelligence website,
What should be the ethical constraints on nanotechnology?
The workshop is an exchange of scholarly views on uses of lifesaving nanotechnologies, including the impacts on people, accessibility, monitoring compliance with ethical norms.
I think if you check out the Terasem Island Conference Center in Second Life (SLURL), you will be able to access the archived discussion.