Kirby pointed out this site to me. Check out the video under "Get the Facts". They have an interesting conception of what constitutes fact. I continue to be pushed toward favoring gay marriage by people arguing against it. They really need to hire some people who are capable of making logical arguments.
Even that doesn't account for the real problem with the situation in my mind: why is the government in the business of designating any two people as "married"? If the sanctity of that idea, of that simple word, is so important, why not grant civil unions to all couples, regardless of sexual orientation and leave the marrying up to churches?