"Sharing the Browser: Software lets workers collaborate online by clicking together." By Erica Naone, Wednesday, November 26, 2008 (
http://www.technologyreview.com/web/21718/?a=f)
I think this could be applicable in several different areas (e.g., collaborative reference, staff training / development, etc.). Clearly this particular implementation is just starting out and is more business oriented, but other variations may come along, too.