I don't care for apocalyptic fiction. You know how Garrison Keillor said that the best pumpkin pie you ever had wasn't that much better than the worst? Yeah, same thing with apocalyptic books.
However, if I did like apocalyptic fiction, I'd be interested in spending some time at Parenthetical.net, where it is Old-School Apocalypse Month.
That link comes from Wands and Worlds, which has a snazzy new layout.