Open Source Web Browser

What are the most popular web browsers by operating system?

I'm researching web browsers for my dissertation. I'd appreciate refernecable material rather than conjecture. An ideal answer might be: IE6 (Windows) 35% Firefox (Windows) 25% etc... Please don't forget Linux and OSX! Best wishes in advance....

Public Comments

1. I know the popular ones are fire fox Internet explorer and Netscape . I like Internet explorer 7.0
2. Check out this site: http://www.w3schools.com/browsers/browsers_stats.asp
3. A website I use to watch football posted these stats about their users whether these are typical or not I have no ides. Browsers Explorer 62.56% Firefox 30.68% AOL 3.05% Other, Opera, Safari, Crazy Browser, Avant Browser, Mozilla, Netscape - all 1% or less. OS XP 93.65% Win 2000 2.31% MacOS X 0.85% Win 98 0.74% WinME, Win, Other, Win NT, Win 2003, and Linux last with 0.11%