This pic is unrelated to the film links below I just like pic's on blogs. The pic is what happens if you stray from the center of some fat bike trails. It is often like ridding on top of a skinny table of packed snow. It is even harder when you auger in after falling on the side of your body.
Fat bikers like tscheesy and endorondo among others like coast kid are really making some nice videos and posting them on the MTBR fatbike forum. Here is one from a few days ago:
Link 1 for endorondo's film of how some of this was done go
here.