1.正规版权图片:
http://www.1tu.com/ (壹图)
http://www.hellorf.com/ (海洛)
http://www.123rf.com.cn/ (123RF)
http://www.veerchina.com/ (中国图库网)
http://www.quanjing.com/ (全景,较贵,非必要不采用)
http://www.gettyimages.cn/ (华盖,较贵,非必要不采用)
  
2.高清图片:
http://pixabay.com/ (PixaBay,免费)
http://www.freeimages.com/ (FreeImages,免费)
http://www.goodfon.ru/ (壁纸)
http://alpha.wallhaven.cc/ (壁纸)
http://cn.forwallpaper.com/ (壁纸)

3.图标:
http://iconfont.cn/ (阿里巴巴)
https://iconfinder.com/ (IconFinder)
http://www.easyicon.net/ (EasyIcon)
http://www.iconpng.com/ (IconPng)
http://findicons.com/ (FindIcons)

4.搜索:
https://images.search.yahoo.com (YAHOO)
http://huaban.com/ (花瓣)
http://cn.bing.com/images (Bing)
http://image.baidu.com/ (百度)
https://500px.com/popular (500PX)

5.酷站:
http://www.zcool.com.cn/ (站酷)
http://cwd.68design.net/ (68Design)
http://www.krwz.com/kr/Exhibitions.asp (韩国设计网)
http://www.sj63.com/ (设计路上)
https://www.behance.net/ (Behance)
https://dribbble.com/ (Dribbble)
http://www.thefwa.com/ (TheFWA)

6.源文件下载:
http://www.sccnn.com/ (素材中国)
http://www.nipic.com/ (昵图)
http://sc.68design.net/ (68Design)
http://www.imagewa.com (图蛙)
http://www.58pic.com(千图网)

7.找字体:
http://www.myfonts.com/WhatTheFont/ (英文)
http://www.qiuziti.com/ (求字体,中文)