Zombies keep on rising. One recent datapoint is the number of Amazon Kindle ebooks with "zombie" in the title.
On Halloween night in 2011, there were 2,269 different Kindle ebooks with their word “zombie” in their title. But by 2012, that number had more than doubled, with 4,874 zombie ebooks there were now available on the Kindle. And this year? OMG! Amazon’s Kindle store now has 8,052 zombie ebooks!
Check that link for a wide-ranging catalog of titles. For example,
The Zombie Attached To My Head
My Lovesick Zombie Boy Band
A Christmas Carol of the Living Dead: a zombie holiday tale.
An Inconvenient Amish Zombie Left Behind The Da Vinci Diet Code Truth
Texas Biker Zombies From Outer Space
Jesus Camp Zombie Bloodbath
Nobody Wants to Play With Zombie Jesus
Diary of a Duct Tape Zombie
Goddamn Redneck Surfer Zombies
Attack of the Shark-Headed Zombies
Zombie Project Management
(thanks to Jesse Walker)