http://www.uxapprentice.com/
http://www.inspireux.com/2010/06/28/50-sketching-resources-for-user-experience-designers/
Intressant läsning:
http://www.smashingmagazine.com/2011/12/13/the-messy-art-of-ux-sketching/
Relevant presentation:
Verktyg:
http://www.uxbooth.com/articles/tools-for-sketching-user-experiences/