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!
Zwicon - A simple, carefully designed collection of icons
Font Generator - Tons of font ideas in one click
Iconjar - Store all your icons in one place, just a click away
Typographic Project - Offers inspiration for using Google’s font library
Material Icons Library - Free collection of 1000+ icons for design