Presentation on linux!

Hey all ,
How u all doing , i have got a presentation in my college that i have to pick an Os and give a presentation on its features , bit technical side also.I am planning to pick Suse 9.3 or Mandriva 10.1.Can u suggest me some sites which can provide me indepth information on these particular Os like the architecture etc.Hoping for a positive reply.
Thanks

try http://distrowatch.com. you'll see a list of distro's on the right side, click on the one you want and you'll see a page with a lot of info related to the distro plus useful links.

hope this helps, good luck with the presentation! :D[/url]