Google Fonts - Making the web more beautiful, fast, and open through great typography
Fluid for Sketch - Sketch plugin to make your responsive designs more efficient
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.
Anima App - Design, get feedback, convert to code, publish, iterate.
Font Generator - Tons of font ideas in one click
Git Sketch Plugin - Version control for designers