1. 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!

  2. IconPharm is a library of open source icons with recoloring and resizing tools.

  3. Search through more than 735,000 free icons. Browse icons by category, artist, popularity, date. Organize and share your favorites.

  4. Commercial vector icons and accompanying apps to manage and customize them.

  5. Edge Web Fonts is a free service that provides access to a large library of fonts for your web site.

  6. GLYPHICONS is a library of precisely prepared monochromatic icons and symbols, created with an emphasis to simplicity and easy orientation.