Vintage Ads Are Cool - Replace Facebook ads with cool vintage ads
Icons8 - Free app for Mac & Windows already containing 39,800 icons. Allows to search and import icons…
MakeAppIcon - MakeAppIcon resizes and optimizes your icon designs into all formats needed for iOS and Android mobile app!
Craftwork - A collection of User Interface resources made by Craftwork
App Icon Generator - Generate icons and images for mobile apps, android and iOS. No need to upload or download. Works on your browser
Iconscout - Design Resource Marketplace.