• SAP Press
• Chirp Books
• Hearst Magazines US
• Cokesbury
• Test Mango
• Lillypost CA
• Paperback Swap
• Bigger Books
• Lillypost US
• Nature Journal
• Daedalus Books
• Oukitel
• BuySubscriptions
• TAN Books
• Fangoria
• Next Big Idea Club
• MILK Books
• Magazine Line US
• Scholastic
• Kelsey Media UK
• Highlights
• Deseret Book
• LION'S ROAR STORE
• iSUBSCRiBE UK
• BigBattery
• MisterArt.com
• ThriftBooks
• Sanrio
• Nolo
• The Sun Digital
• O'Reilly
• Magazine-Agent
• FRANZIS
• Stylevana HK
• Kidsbooks
• Albert US
• Fabletics UK
• Kobo UK
• QBD Books
• missyUSA
• Booktopia AU
• ValoreBooks
• Studentbeans
• AbeBooks UK
• Smashwords
• Becker CPA Courses
• TASCHEN Books
• Chegg
• MagsDirect
• Writers Store
• Sparkle Stories
• Book of the Month
• Powell's Book
• Free-eBooks
• History Book Club
• Dymocks Books & Gifts
• Blurb
• Jamalon
• DC Thomson
• Quilting Daily
• RedShelf
• Renegade Game Studios
• Zavvi UK
• Qpb.com
• Thomas Nelson
• Magazines.com
• LoveReading
• Simon Sinek
• Snapfish UK
• Textbookx
• Dark Regions Press
• Magshop
• Churchsource
• GreatMagazines
• Eden
• Rachel Mintz
• DiscountMags.com
• Magazine.co.uk
• ValueMags.com
• Alibris
• Harper Collins
• Uncle John's Bathroom Reader
• ARIELTHEERDH
• eCampus
• HireWriters.com
• The Book Depository EU
• Books a Million
• Mrs Wordsmith
• Cisco Press
• BookRenter
• Audible CA
• Kobo
• The Book Depository UK
• Meredith Magazine Store
• textbooks
• bkstr.com
• Bookshop
• The Book Depository (US)
• Zinio Digital Magazines
• The Art of Service
• EBookIt
• WritersDigestShop
• MUJI UK
• getAbstract
• Indigo Books & Music
• Dreame
• World of Books - Sell Your Books
• LoveReading4Kids
• BookBaby
• Nitetronic US
• Audiobooks.com
• The Pragmatic Bookshelf
• Barnes & Noble
• Gotham Writers
• Readly UK
• Artkive
• World Book Store
• Knock Knock & Emily
• Everand
• VitalSource
• Doubleday Book Club
• MagsConnect
• BetterWorldBooks
• Moonlite
• Alibris UK
• Firebox
• STRAND BOOKS
• Bissell AU
• Paperchase UK
• Shambhala
• Half Price Books
• Palgrave - INT
• Bookbyte
• Librio
• LoveBook LLC
• Hero Health
• Snif
• Simon & Schuster
• Cookstr.com (US)
• Magazine-Agent.com
• Dover Publications
• Gestalten
• Biblio
• The Tuttle Twins
• Veryfinebooks
• Simplydiobooks
• Smithsonian Store
• Bookpository
• Gobi Cashmere UK
• Chronicle Books
• Safari Books Online
• Jarrold Department Store
• Science Fiction Book Club
• Books2Door
• Apress