From the Humanmetrics typology test:

Your Type is 
INTJ
	Introverted	Intuitive	Thinking	Judging
Strength of the preferences % 
	33	            56	          44	         11

INTJ type description by D.Keirsey
INTJ type description by J. Butt and M.M. Heiss 

Qualitative analysis of your type formula

 You are:

• moderately expressed introvert

• moderately expressed intuitive personality

• moderately expressed thinking personality

• slightly expressed judging personality

Apparently, my J is eroding.

From the Mind Media Brain Persuasion Test:

Your Brain Usage Profile

Auditory : 26%
Visual : 73%

Left : 57%
Right : 42%

Gullible, you are somewhat left-hemisphere dominant and show a preference for visual learning, although not extreme in either characteristic. You probably tend to do most things in moderation, but not always.

Your left-hemisphere dominance implies that your learning style is organized and structured, detail oriented and logical. Your visual preference, though, has you seeking stimulation and multiple data. Such an outlook can overwhelm structure and logic and create an almost continuous state of uncertainty and agitation. You may well suffer a feeling of continually trying to "catch up" with yourself.

Your tendency to be organized and logical and attend to details is reasonably well-established which should afford you success regardless of your chosen field of endeavor. You can "size up" situations and take in information rapidly. However, you must then subject that data to being classified and organized which causes you to "lose touch" with the immediacy of the problem.

Your logical and methodical nature hamper you in this regard though in the long run it may work to your advantage since you "learn from experience" and can go through the process more rapidly on subsequent occasions.

You remain predominantly functional in your orientation and practical. Abstraction and theory are secondary to application. In keeping with this, you focus on details until they manifest themselves in a unique pattern and only then work with the "larger whole."

With regards to your career choices, you have a mentality that would be good as a scientist, coach, athlete, design consultant, or an engineering technician. You can "see where you want to go" and even be able to "tell yourself," but find that you are "fighting yourself" at the darndest times.

I'm going to quibble quite heavily with the latter, at least, since it doesn't at all seem to fit. This paragraph tells me something has gone horribly awry somehwere in there: "Your tendency to be organized and logical and attend to details is reasonably well-established". One out of three ain't bad, but I'm no more organized than a barnyard, and attention to details is, frankly, for the little people. Time sheets, check requests, status reports, data entry, all the fine chopping of life and the life-sucking bureacracy -- it's like choking death to me. When I have time for quibbling over details, it's either a.) at gunpoint, or b.) because I have nothing better to do and am bored stiff. If you have nothing better to do than this piddly crap, you don't have enough to do, and should probably do some real work. Paperwork is for peasants.

As for the strong preference to the visual, if this includes the written, I accept without hesitation. However, I'm a big fan of lectures, especially monolithic lectures by experts (as opposed to group chit-chat among the ignorant). Which seems Auditory. So I'll reserve judgment on that.

"Abstraction and theory are secondary to application." Clearly, I've been kidnapped by aliens and had my brain swapped with somebody else's. I wouldn't think anybody thought of me as that practical. I apply only after gobs of theory have bolstered me on all fronts. I have a theory of a career, not a career. Even if I did, I doubt I'd really fit as "scientist, coach, athlete, design consultant, or an engineering technician." The only bits of coaching I'd like much would be the screaming and ego-tripping, I think.

To sum up, I'm a bit down on the latter quiz, but I'll open it up to wisecracks from the floor in case I'm not seeing myself clearly.