Android users can't buy titles on Audible or B&N NOOK - Protocol

Can't buy Kindle books on Android? This tutorial will help - Good e-Reader

Audible, Barnes & Noble apps remove payment options following Google Play deadline

customers can't buy books on Kindle app for Android anymore: The change comes as Google plans to boot apps that don't use its Play Store billing system for many in-app purchases

Barnes & Noble BNRV200 8GB NOOK Color Wifi eReader 7 (Slate) : Electronics

Barnes & Noble BNRV200 8GB NOOK Color Wifi eReader 7 (Slate)

NOOK App for iPhone and Android, Barnes & Noble

Barnes & Noble NOOK App for Android - Download and Install – Barnes & Noble

NOOK App for iPhone and Android, Barnes & Noble

Barnes & Noble is finally offering an audiobook service

BNRV300-A eBook Reader User Manual Barnes & Noble NOOKcolor User Guide Barnes&Noble.com;

Nook GlowLight Plus Review: Barnes & Noble's Largest Screen

Kindle Paperwhite TTS - MobileRead Forums

Google crackdown means you won't be able to buy Barnes & Noble ebooks on Android - The Verge

Barnes and Noble is disabling Nook ebook purchases on Android - Good e-Reader