Personality - what is it and how do you measure it?

Determine your personality using either the Keirsey sorter or the Big 5 test. 
Take at least one of the tests linked below - get the results and post them in a new entry on your blog.  Also post the explaination of your results (what does your "type" say about who you are?)

http://keirsey.com/sorter/instruments2.aspx?partid=0

http://www.testcafe.com/