生物图片库
提供高清生物图片制药仪器图片
排序
快图网
快图网提供免费的PNG元素和高清背景图片素材免费下载
图虫图库
海量图库,涵盖创意图片和矢量素材等
5百丁
中国领先的PPT模板共享平台
tretars
The best free Mockups from the Web
PPTMind
分享高端ppt模板与keynote模板的数字作品交易平台
PPT+
PPT加直播、录制和分享—PPT+语音内容分享平台
优品PPT
高质量的模版，而且还有PPT图表，PPT背景图等资源
OfficePLUS
OfficePLUS，微软Office官方在线模板网站！
publicdomainarchive
New 100% Free Stock Photos. Every. Single. Week.
hdwallpapers
High Definition Wallpapers & Desktop Backgrounds
jeshoots
New Free Photos & Mockups in to your Inbox!
magdeleine
HAND-PICKED FREE PHOTOS FOR YOUR INSPIRATION
skitterphoto
a place to find, show and share public domain photos
mmtstock
Free photos for commercial use
skitterphoto
Free Stock Photos for Creative Professionals
lifeofpix
Free high resolution photography
imcreator
A curated collection of free web design resources, all for commercial use.
gratisography
Free high-resolution pictures you can use on your personal and commercial projects, free of copyright restrictions.
negativespace
Beautiful, High-Resolution Free Stock Photos
freenaturestock
Exclusive mindblowing freebies for designers and developers
thestocks
Use our FREE photos to tell your story!
55mm
Use our FREE photos to tell your story!
stokpic
Free Stock Photos For Commercial Use
papers
Wallpapers Every Hour!Hand collected :)
Notaselfie
Photos that happen along the way. You can use the images anyway you like. Have fun!
myphotopack
A free photo pack just for you. Every month.
albumarium
The best place to find & share beautiful images
StockSnap
Beautiful free stock photos
SplitShire
Free Stock Photos and Videos for commercial use.