Well, I'd expect the suicide rates in all countries to increase.. Some people are too addicted to TV/Internet and things that require electricity in general.
Not being able to access MLK wouldn't be the end of the world to me, but not being able to know if my online friends are okay would be.
Well, there's another warning for 2012. Yellowstone might erupt, and the ashes may cover the Sun, causing a new ice age. Now THAT we can't survive, since we won't be able to survive to such cold temperatures. And even if we did, plants would die because not only the can't survive the cold, but they also need the sun. And no plants = no oxygen = no life.