In the Social Computing column of the current edition of IEEE Computer (Vol 47, Issue 7) you can find the article 'Toward Connected Shared Experiences' by Pablo Cesar (STCSN member), Rene Kaiser (STCSN E-Letter chair) and Marian Ursu.

To move beyond the current "talking heads" paradigm and enable truly natural and immersive shared experiences, video-mediated communication systems must be able to understand the context of the shared activity as well as the social layer of interaction.

See details here:
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6861926