MRN - A Material Design style React Native component library.
Material Up - Curates the best of Material Design inspiration, tools and freebies.
Patternry - A tool for building living UI libraries
Initab - Initab replaces your browser's default new tab page with a dashboard of useful tools to make your job as a programmer easier.
pttrns - iPhone and iPad user interface patterns
DesignVault.io - UI interaction patterns & screenshots from the world's best digital products.