A romp through the history of aroma-media from 1906 to today.
I left out too much. Hence the Pt 1.
The Wired article on DigiScents:
http://www.wired.com/wired/archive/7.11/digiscent.html
Survey of various Smell-o-Vision projects:
http://answers.google.com/answers/threadview/id/115323.html