- The Sketch Monkey
- The Design Sketching book
- Design Sketching by Martijn van de Wiel
- Design Sketching Courses
- Sketch a Day
- SketchDrive – interactive tool to easily share, view and discuss visual work online.
- Michael DiTullo Sketchbook
- Product Sketch – Instagram
- Sketch Academy from Argentina – Instagram
- Sketch Factory – Instagram
- IDSketches – Pinterest
DESIGN MODELLING SITES