CoD4 Leaderboards?

I have the 360 verson of CoD4, and am wondering if it is possible to check the game's leaderboards online through my PC without logging onto my 360 and firing up the game. I tried using google and looking around on CharlieOscarDelta.com but have not found anything, anyone out there know of a site?

Thanks in advance.

looking for same thing except for PS3 lol