Noah Berlatsky at the Atlantic points out Amazon's struggle with the lucrative erotica market on e-readers—while it's nice to make money off your bathing suit area's reading needs, they don't want your searches to return Cannery Ho and The Grapes of Ass* whenever you search for the original titles, right?

The Kindle, then, provides both privacy and the promise that somewhere, someone has written exactly the gay werewolf paranormal romance you've always wanted to read. Combine the privacy and range of titles, and there's little doubt that for readers digital is the perfect porn delivery system.

Which seems to have made Amazon somewhat uncomfortable. Back in 2010, Amazon deleted many erotica e-books with incest themes—not only dropping them from its store, but actually electronically erasing old titles from consumers' digital devices. (It later claimed the erasures were a mistake, though its policy on incest titles remains unclear.) More recently, the company has been filtering some erotic titles, so that they don't appear in the All Departments search. To find them, you need to search directly in Books or in the Kindle store...

Fiddling with the search function may seem like a relatively benign step. In practice, though, it has an impact on sales, and can render a title essentially invisible.

*Obviously, we had a loooooooooong discussion in the office on what titles should go there. The rest of them are below the jump, feel free to add to the list!

A Tale of Two Titties
Tristram Handy, Gentleman
An Officer and a Genitalia
Great Ejaculations
Moby Dick (ha-ha)
And Then There Were Cums
The Da Vinci Cock
Charlotte's Bed (and/or Charlotte's Head)
Jonathan Livingston Spread-Eagle
One Hundred Years of Solid Dudes
The Old Man and the Semen
Atlas Plugged, by Man Randy
Eye of the Noodle
What Color Is Your Pair of Boobs?
The Life of Thighs