Zwicon - A simple, carefully designed collection of icons
Nucleo - Commercial vector icons and accompanying apps to manage and customize them.
Iconjar - Store all your icons in one place, just a click away
Vivid JS - A highly customizable, open source SVG icons library
Google Fonts - Making the web more beautiful, fast, and open through great typography
Line Awesome - Same icons as Font Awesome, but in a modern outline style.