I thought this pie chart of browser accesses to WebLearn may pique interest – for “Safari” read “Safari / Chrome”! This is from the period 1st August 2010 to 31 July 2011.
Summary of browser access to WebLearn for the academic year 2011-2011
Here’s a similar chart for operating systems.
Summary of operating system access to WebLearn for the academic year 2011-2011