I've noticed the use of Linux by University students is quite high. If you read dot.kde.org, or planet KDE you might notice a high number of writers are students. And I've noticed this first hand.
I have a couple of friends who are physics researchers, and they seem to prefer using Linux for their tasks. I've installed Kubuntu for a few of them. When I worked for the Center of nonlinear dynamics, most of the workstations had been running Linux.
Perhaps the scobleizer might want to cover this aspect of computer usage...
