I'm not sure how much stock I take in this sort of thing, but I do enjoy doing these little tests every once and a while.
According to this test I'm an INFJ -- Introverted Intuitive Feeling Judging. I came up as slightly introverted, higher intuitive and moderate feeling and judging.
I suppose my problems with these sorts of tests always comes down to the fact that I can't answer all the questions accurately and so the result is never quite accurate. And of course I think we as humans are more complex than can be assessed within a few short questions. I myself have many paradoxes in my personality and behaviour that can't be fit into the descriptions provided.
While I'm unsure how I feel about being depicted as a "counselor or protector" type (Ghandi I am not), and I truly do not like being described as "service oriented", I do hold many traits of Carl Jung's "idealist" personality; predominantly my identity seeking nature and resistance to external instruction.
Oh and here's my favourite part:
"Situations which are charged with conflict may drive the normally peaceful INFJ into a state of agitation or charged anger. They may tend to internalize conflict into their bodies, and experience health problems when under a lot of stress."
and
"INFJ is a perfectionist who doubts that they are living up to their full potential. INFJs are rarely at complete peace with themselves - there's always something else they should be doing to improve themselves and the world around them. They believe in constant growth, and don't often take time to revel in their accomplishments."
And this page that details the weaknesses of the INFJ type (when there is imbalance) is pretty accurate. This page about careers is also accurate.
Despite all of this, ultimately what these sorts of categorizations seem to suggest is that personality traits are unchangeable aspects of our behaviour -- that we were born this way. I find that difficult to agree with. I tend to lean heavily towards nurture over nature in these matters. I'm not so sure that I can be categorized and boxed because this is inherantly "who I am", but rather because I have adopted many of these traits and behaviours in response to my surroundings. If I were to take this test in five years would I come up the same?
More about the INFJ type:
[*Incidently when I did this test I came up as ENTP; Extraverted, iNtuative, Thinking, and Perceiving which is the Rational (knowledge seeking) type (inventors or visionaries.)