there is one on facebook and it is my favourite. it got 100 questions and in the end it shows your result in a bar graft. where there the percentage of of your neurotism, extraversion, openness and agreeablenes.
i am pretty satisfied with my results :
Openness
71%
Conscientiousness
73%
Extraversion
70%
Agreeableness
63%
Neuroticism
9%