Max here from Cards Against Humanity. We talked about donating to the Wayback Machine, but ultimately decided that a contribution Wikipedia would help more people with a more fundamental need.
Sure! It's a really simple party game - one player plays a black card to the group which poses a question, every other player answers the question with the funniest white card in their hand. There's more information at http://www.CardsAgainstHumanity.com.