I just came across this video. Apparently they are doing a series (14 so far judging by the number) of podcasts titled 'lets build an mmo' where they discuss each aspect of an mmo they want to make in a different episode. Have the guy bookmarked as he has made certain videos that are pretty interesting.
Not sure if it's any useful to you, just figured you might want to check them out (you will have to do some browsing/searching on the guys channel to find all the episodes, since he has a shitload of videos uploaded).