Open Peeps - A hand-drawn illustration library.
imgix - Real-time Image Processing. Resize, crop, and process images on the fly, simply by changing their URLs.
Control Illustrations - 108 free flat illustrations with customizable characters
Cloudimage - Cloudimage.io is the easiest way to resize, store, and deliver your images to your customers through a rocket fast CDN.
DrawKit - MIT licensed SVG illustrations, in 2 styles
Gumlet - Gumlet is an end-to-end video streaming and image delivery platform