Browser Statistics Month by Month
http://w3schools.com/browsers/browsers_stats.asp
OS Platform Statistics
http://w3schools.com/browsers/browsers_os.asp
Screen Resolution
http://w3schools.com/browsers/browsers_display.asp
http://w3schools.com/browsers/browsers_stats.asp
http://w3schools.com/browsers/browsers_os.asp
http://w3schools.com/browsers/browsers_display.asp