We had this test up before, a year ago or so, but I wanted to draw attention to it again.
Take it.It's a three-dimensional test. That is, it has three axes where the Political Compass has two.
Unfortunately, it doesn't provide a fancy graphic or your exact value for the three dimensions, but you can actually tell quite a bit from your result.
For example, take my result:
Liberal 100
Anarcho-Syndicalist 74
New Labour 70
Totalitarian 57
Libertarian 47
Traditional Societies 37
Authoritarian 30
Conservative 4
Any result with Liberal 1st should have Conservative 8th - they're on opposing sides of 0 on all three axes.
Same thing with Anarcho-Syndicalist and Authoritarian, New Labour and Traditional Societies, and Totalitarian and Libertarian.
The results at 2, 3, and 4 should be on the same side of 0 as your no.1 result on two of the three axes each - making it possible to tell on which of the three axes you're closest to 0, on which furthest removed.
The percentages are not all that informative since their recalculated to 100% for the top result, but everyone's first, second and third places should be highly informative.