Changes

: Mozilla [https://mozillalabs.com/blog/2009/01/introducing-the-design-challenge/ Design Challenges]

: Chris Zalwinsky Resources [http://www.amazon.com/Design-Everyday-Things-Donald-Norman/dp/0385267746 Design Everyday Things]

: Chris Resources [http://www.hcibook.com/e3/chapters/intro/ Human Computer Interaction]