This is a myth that just won't die: http://en.wikipedia.org/wiki/The_Magical_Number_Seven,_Plus_or_Minus_Two http://en.wikipedia.org/wiki/The_Magical_Number_Sev

This is a myth that just won't die: http://en.wikipedia.org/wiki/The_Magical_Number_Seven,_Plus_or_Minus_Two http://en.wikipedia.org/wiki/The_Magical_Number_Seven,_Plus_... And why it doesn't apply to UI's: http://www.ddj.com/184412300 http://www.ddj.com/184412300