When your ebook reader breaks, or you can't buy a new laptop, or there's no power, I'll still be reading a book, by candlelight. Slightly extreme counter-argument, I know, but I always detect the whiff of techno-narcissism whenever ebooks come up. What if the internet, electronic publishing etc. is just a blip, part of the cheap energy orgy that fossil fuels has enabled? They won't be very useful under certain future scenarios.