Sketch Repo - Collection of resources for anyone who uses Sketch
Google Fonts - Making the web more beautiful, fast, and open through great typography
AT-UI - UI library for developing powerful web interfaces
Typewolf - Typewolf helps designers choose the perfect font combination for their next design project—features web fonts in the wild, font recommendations and learning resources.
UI Libraries by Shuffle - A marketplace for busy front-end developers
Font Generator - Tons of font ideas in one click