Activision
http://www.escapistmagazine.com/news/view/102628-Activision-Joins-the-Anti-Used-Games-Crusade
http://www.joystiq.com/2012/02/19/activision-doesnt-blacklist-journalists-working-on-resolutio/
Aerosoft
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
Atari
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
http://arstechnica.com/gaming/news/2008/12/atari-calls-used-game-sales-extremely-painful.ars
Bioware
http://www.rosomaxa.com/news/console-news-releases/bioware-cerberus-not-anti-used-games.html
(yeah right... building a "good relationship")
BitComposer
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
CDProjekt
http://www.pcgamer.com/2011/11/29/interview-cd-projekts-ceo-on-witcher-2-piracy-why-drms-still-not-worth-it/
Codemasters
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
dtp entertainment
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
EA
http://www.shacknews.com/article/54455/ea-used-game-sales-represent
+ Origin debacle
Eidos
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
Epic
http://www.bit-tech.net/news/gaming/2008/11/10/epic-second-hand-games-are-a-huge-issue/1
Frontier Developments
http://www.computerandvideogames.com/340564/second-hand-market-killing-single-player-games-braben/
Game Loft
http://www.tomsguide.com/us/Gameloft-Glenn-Watson-dangerous-working-conditions-games-on-new-zealand,news-11884.html
Koch Media
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
Lionhead
http://www.eurogamer.net/articles/2011-05-17-lionhead-pre-owned-worse-than-pc-piracy
Lucas Arts
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
Namco Bandai
http://www.dsogaming.com/news/namco-bandai-sues-cd-projekt-red/
Obsidian
http://www.vg247.com/2011/12/13/obsidian-wants-to-go-digital-and-kill-off-used-games/
Quantic Dream
http://www.develop-online.net/news/38614/We-lost-10m-from-pre-owned-Heavy-Rain-Quantic-Dream
Runic Games
http://gamingnexus.com/Article/Developer-Retrospective-Runic/Item3393.aspx
Sony
http://videogamewriters.com/with-socom-4-sony-strongly-discourages-used-game-sales-8011
Square-Enix
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
Techland
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
THQ
http://kotaku.com/5620280/thq-buying-used-games-is-cheating
Ubisoft
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
http://technologizer.com/2011/07/15/ubisoft-joins-the-used-game-punishment-party/
Volition
http://altdevblogaday.com/2012/02/02/i-feel-used/
Warner Bros.
http://torrentfreak.com/square-enix-eidos-other-game-giants-all-demand-cash-from-pirates-120115/
http://gonintendo.com/?p=87775