I know there's a lot of interest in this around here, and I'm happy to find one that's not about zombies :)

Title: "Cyberstorm." What happens when the Internet is hacked and goes down. Since so much is controlled by computers---electrical and water systems, transit, finance, health care, shopping, shipping, etc etc.,  it has sweeping and catastrophic effects. The book focuses on a group of New York City residents, and of course the city is much different than being in the country or small town. It covers the first few months of what happens, and how people deal, or not. Food supplies and starvation is a big theme.

I got it on Kindle, and they were running a deal, it was around $2 and well worth it. Not perfect---a little too much philosophizing about computer privacy and dependency, but it fits well with the overall theme and action.

I have this on my wish list.  Glad to hear it is good.

speaking of doomsday.

anybody read Alas, Babylon.

a book I always wanted to read but never have is On the Beach by Nevil Shute. People I know who have read it say it is very depressing.

speaking of cyber stuff that reminds of Neuromancer by William Gibson.