Also, ebooks:

Me, next Tuesday

What about when Terror People eff up the "grid" irrevocably?  You saw when Twitter was down the other week, people were leaping from high places to be squished, worried they missed the latest tweets from Nick Cannon or whomever.

I'm sticking with paper, still.  Even when a candle made of deer fat is burning, I'll still be able to re-read, I dunno, The Accidental Tourist or what have you.