Copyright Friendly Photos

  1. Unsplash.com

  2. Pixabay

  3. NASA Image Library

Copyright Friendly Icons

  1. The Noun Project

  2. Free SVG

Image Editing

  1. Remove Image Background

  2. PixlrX Online Image Editor

  3. GIMP Image Editor (free / open source, requires MacOS or WindowsOS)

  4. Adobe CC Express

Miscellaneous

  1. ColorZilla (Chrome Extension)

  2. Emojipedia