UX Database - The biggest free curated product design resources & tools
Humaaans - Mix-&-match illustrations of humans with a design library.
Freebiesbug - Collection of the best free web design resources.
Icons8 - Free app for Mac & Windows already containing 39,800 icons. Allows to search and import icons…
Dev Resources - Collaborative list of resources for developers
Wannathis - 3d illustrations and freebies