backiee The ultimate free wallpaper site and app. Available on Web, iPhone, Android, Xbox, and Windows platform as well.
Gratisography The world's quirkiest collection of free high-resolution pictures you can use on your personal and commercial projects. All completely free of copyright restrictions. New photos added every week!
[P站]-Pixiv Illustration Collection 虾萌是国内P站画师作品分享及学习交流网站,提供Pixiv插画排行榜与各类动漫二次元插画的浏览以及热门排序的高级会员搜索,并围绕着画作提供了收藏与画集等特色功能,致力于给予用户完善的一站式acg社区体验。海量pixiv画师作品,p站画师一手掌握!