http://dll-files.com/
Ever get those annoying errors when your PC loads or just out of the blue that state, "ERROR! (missingdll).dll is missing.
Those messages piss me off. Since I really don't keep discs of too many things, I like to download many of my DLL files from this website. It's very useful and they even have WoW DLL files, that's how I ran into this website in the first place!
Hope this helped someone!
~Stans Dad