http://research.microsoft.com/en-us/research/stories/worldwide-telescope.aspx
http://blog.ted.com/2014/03/25/yes-thats-commander-chris-hadfield-wearing-the-oculus-rift-and-yes-the-internet-just-exploded/
http://wwtamabassadors.org
(add Spitzer, Chandra, Hubble links here--Curtis/Jonathan will provide best current examples)
http://adsass.org/wwt