By the way, for the last question, the Myers-Briggs typology test is here:
http://www.humanmetrics.com/cgi-win/JTypes2.asp
Its a system of typing personalities based on the theories of Jung. It consists of four "sliders", which produce 16 four letter codes that conform to the Jungian personality types.
Extroversion (E) -- Introversion (I)
Intuition (N) -- Sensing (S)
Thinking (T) -- Feeling (F)
Judgement (J) -- Perception (P)
Its widely used as a business tool to predict how team members will act towards each other, amongst other things.