There are thousands of COM objects, each with different methods and properties. There is no single list to be linked to.
A great starting point to learn COM, and some objects, is to read this COM tutorial
by Shredplayer. After that, it's just a matter of finding the right objects, and issuing the right methods on it, or retrieving the right properties from it. Oh yea, the way "dispatch" works might be very confusing the first time you see it, don't get discouraged though!
Some good COM starting points: Wscript.Shell FileSystemObject (FSO) WMP WMI
All the snippets
I've submitted to ms.org involve COM, so it could be a good starting point to see how objects can be used.