IconStore - Free icon packs by first-class designers
Humaaans - Mix-&-match illustrations of humans with a design library.
omg-img - Insert icons directly into your HTML just by coding
Handsome Illustrations - Create unique illustrations for websites & applications.
Mosaic - Mosaic provides brands with solutions to store and categorize their digital graphic and photography files for quick and easy retrieval.
Blush - Illustrations for everyone