Do a Google search for "Amazon Rank" and the following will appear:
Inflected Form(s): amazon ranked
1. To censor and exclude on the basis of adult content in literature (except for Playboy, Penthouse, dogfighting and graphic novels depicting incest orgies).
2. To make changes based on inconsistent applications of standards, logic and common sense.
Etymology: from 12 April 2009 removal of sales rank figures from books on Amazon.com containing sexual, erotic, romantic, gay, lesbian, bisexual, transgendered or queer content, rendering them impossible to find through basic search functions at the top of Amazon.com’s website. Titles stripped of their sales rankings include "Bastard Out of Carolina," "Lady Chatterly’s Lover," prominent romance novels, GLBTQ fiction novels, YA books, and narratives about gay people.
Example of usage: "I tried to do a report on Lady Chatterly’s Lover for English Lit, but my teacher amazon ranked me and I got an F on grounds that it was obscene."
Alternate usage: "My girlfriend wanted to preserve her virginity, and I was happy to respect that, then she amazon ranked and decided anal sex was okay."
This is a not so Happy cast iron Easter egg!
Amazon has decided to pull books with gay themes, characters, etc from their rankings. They admit they are indeed stripping the sales ranking indicators for what ‘they’ [whoever he or she is:] deem to be "adult" material.
"The hypocrisy in this action is that there is plenty of "adult" literature out there that is still being ranked – Harold Robbins, Jackie Collins, etc… "
"They are using they own category system to target (currently gay and lesbian) these books as somehow offensive."
The Twittersphere is also very active on the subject.