MonoLisa - font follows function
Android Icons - Androidicons is a professional, handcrafted icon set with 250 icons in 14 different colors and 5 sizes, including an icon font and all sources.
Fonts In Use - Type in the real world: an amazing archive of typography.
Octicons - Your project. GitHub's icons.
Devicons - Iconic font made for developers, code jedis, and designers
Material Design Iconic Font - Material Design Iconic Font is a full suite of official material design icons and community icons for easy scalable vector graphics on websites or desktop.