This Flickr photostream by "Moravius," who is some sort of humanitarian aid worker in NK. There are lots of photos from outside Pyongyang, which I rarely see elsewhere on the web: http://www.flickr.com/photos/kernbeisser/sets/
The Twitter account of James Dresnok, the last living US defector to North Korea: https://twitter.com/JamesDresnok
There's a great documentary on Dresnok called "Crossing The Line." His Twitter account is one of the weirdest internet artifacts I've discovered: he only posts every 2-3 months, and the first account he followed was a Kim Jong-il parody.
It only has 96 followers