Google Fonts - Making the web more beautiful, fast, and open through great typography
Better Google Font Finder - Sort & compare Google Fonts by their visual attributes.
FontJoy - Get smart font pairings in one click
Font Flame - Tinder for font pairing
Fontless - A simple, privacy-focused way to self-host Google Fonts.
Font Awesome - Font Awesome makes it easy to add vector icons and social logos to your website. And version 5 is redesigned and built from the ground up!