My BLOGinality is INTJ! The bloginality site includes a personality test based on the Myers-Briggs test based on Carl Jung's work. According to the test, as an INTJ (Introvert, INtuitive, Thinker, Judger) my personality tends to be: autonomous, aloof, and intellectual; imaginative, innovative, and unique; critical, analytical, and logical; intellectually curious, driven to learn and increase their competence and knowledge; socially cautious and reserved; organized and definitive.
Understanding the different personality types and how to interact with them can be useful tool for technology consultants. It would be a great tool for the in-house IT person, too.