Like the title says,post your results! (poll incoming)
Here are two tests (pick one). Both have a set of 60 questions:
http://similarminds.com/jung.html (Quicker but still quite accurate.)
http://www.16personalities.com/free-personality-test (Slightly more in-depth.)
After you're done,you can check here for the full description of your type: (includes strengths/weaknesses,possible career paths,etc.)
In case you don't know what MBTI (Myers-Briggs Type Indicator) is,its one of the most popular personality tests worldwide,based on the theory proposed by Carl Jung. The test gives you one of 16 personality types which are created from a combination of four letters: Extroversion/Introversion (E/I),Sensing/Intuition (S/I),Thinking/Feeling (T/F),Judging/Perceiving (J/P).
If you're interested,there's a lot more on Wikipedia.
As for me: ENTP. Though I can be a total ENTJ sometimes.