Homepage: http://www.game-style.jp/wallpaper_p/
RSS feed: http://www.game-style.jp/gs.xml
Game-Style is a galge news website that publishes wallpapers monthly to their website, available for only a limited time before they go unpublished.
They also sell telephone cards on Beatniks-Shop for a limited time that come with a download code that will allow you to download the uncensored versions or variations of some wallpapers. (example)
