I think it is better to collect some links and pages that I liked very much in this post. Those which I found very professionnal and want to put them in my favorite all the time.
Here they are:
http://www.throttletek.com/
http://users.skynet.be/jcordon/cockpit/index2.htm
if you want to fly with a 737, here is the good simulation site:
http://www.vdbroeck.net/
