With thanks, sort of, to Boing Boing for the tip-off, it's Hitler or Falwell! According the inventor, it's a "simple game of Godwinism, in which I present a quote and YOU guess who said it!" For example,
4. I hope I live to see the day when, as in the early days of our country, we won't have any public schools. The churches will have taken them over again and Christians will be running them. What a happy day that will be!
5. Universal education is the most corroding and disintegrating poison that liberalism has ever invented for its own destruction.
Find the answers, and play the game, via this link.