Just a reminder that when we hit 4 million topics — probably sometime today — there’ll be a prize for the contributor responsible for the 4 millionth.

My money’s on one of our top contributors as seen on the Freebase homepage. Over the last few days, users like kake, evening and midness have each made thousands of contributions. But the game is still open to anyone who happens to add a new topic to Freebase at the right moment. So if you were thinking of visiting Freebase and adding something, today’s the day to do it.