Its nice to see that C++ has evolved to the point where COM code can be represented with nice easy-to-follow vanilla C++ without making you want to throw up!! (and theres no stupid ^ (hat) symbol in sight)
It looks like Kenny Kerr has a site specifically for this here: http://moderncpp.com/ and a video explaining things here: https://www.youtube.com/watch?v=Nvh3MePAzKs