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<http://www.hanselman.com/blog/content/binary/Windows-Live-Writer/Finding-the-right-Human-Computer-Interac_13457/image_95a42a79-a84d-432c-a363-dfbea3a9af0a.png>
<http://www.hanselman.com/blog/HumanComputerInteractionDiversity7DevicesThatARENTAMouseAndKeyboard.aspx>