My childless friend was raving about MasterClass this summer, he loved the course on negotiation in particular. I wish I could just buy a monthly sub or per class instead of the whole yearly subscription as there's a number of them that I'm interested but I only have brief bursts of time when I have it. I bought a couple courses on The Great Courses this summer and they have been really well done, but I still haven't gotten as far in them as I'd like. (You can also get some of the GC on audible but for the ones I bought they wouldn't translate to audio only.) I know GC has also released a 'all access' subscription but I just do the individual classes and they are on sale all the time.
~ Dawn
Our little monkey (4/2011) & his early holiday present 12/12