fontplop - The simplest, fastest free webfont converter around.
Freepik - More than a million free vectors, PSD, photos and free icons. Exclusive freebies and all graphic resources that you need for your projects
Fontastic - Fontastic is a platform to create custom icon fonts.
The Noun Project - Creating, Sharing and Celebrating the World's Visual Language
IcoMoon - IcoMoon is an icon management tool that is build to provide iconography.
Streamline icons - The world’s largest icon pack library - 100k icons and illustrations.