Reflect - Reflect is a note-taking tool designed to mirror the way your brain works.
Freepik - More than a million free vectors, PSD, photos and free icons. Exclusive freebies and all graphic resources that you need for your projects
Iconoir - A diverse and open-source library with 900+ icons
The Noun Project - Creating, Sharing and Celebrating the World's Visual Language
Vizzu - Vizzu lets you use animated charts to share insights in complex data sets as self-explanatory stories.
Streamline icons - The world’s largest icon pack library - 100k icons and illustrations.