Icons8 - Free app for Mac & Windows already containing 39,800 icons. Allows to search and import icons…
150+ Free Illustrations & Animations - MIT Licensed to use for free in your next commercial project
Iconscout - Design Resource Marketplace.
Humaaans - Mix-&-match illustrations of humans with a design library.
Craftwork - A collection of User Interface resources made by Craftwork
Gumroad - An all-in-one solution to sell your work and grow your audience.