Day[9] (the author of the original essay), is easily the "go to" place for this sort of thing. He has a great amount of analysis scattered throughout his dailies, but here is a link to his most recent daily focusing on "how did I lose" (assuming I remember this daily correctly).

http://blip.tv/file/5460268

Also,

http://wiki.teamliquid.net/starcraft2/Day9_Daily

has a good list of his videos, with their subject, etc.