I took the quiz and it reckons I’m a right moderate social libertarian (Right: 7.27, Libertarian: 3.14). It’s fairly accurate, however obviously the biases of the creators will impact the result. I’m actually a couple of squares lower on the graph: consistent libertarianism holds that it is not authoritarian for a government to criminalise abortion, as abortion does not follow Mills’ harm principle. Also, as Mr. Dennis pointed out, the questionairre does not distinguish between homosexual marriage as opposed to other forms of official contracts (such as civil unions).
Scrubone is considering making up a chart of where we all sit on the political spectrum, so if you take the quiz, be sure to leave him a comment at his blog.