Interfacer - Collection of more than 200+ free design resources
Unicorn Vector Gradients - Free collection of vector gradients inspired by Unicorns.
Facebook Design Resources - A collection of free resources made by designers at Facebook
Icons8 - Free app for Mac & Windows already containing 39,800 icons. Allows to search and import icons…
Freebiesbug - Collection of the best free web design resources.
Iconscout - Design Resource Marketplace.