Wired has an interesting article on Nasa's predictions for violent solar storms to erupt in 2012 and their cataclysmic effect on the world's power grids. It's great to see this getting the attention it deserves. Personally I believe that preparing for societal collapse through personal physical and mental preparation like spiritual development (esp. meditation and martial arts), and basic community-resilience preparation such as community gardens and farmer's markets, take top priority at the present time.