NY-based WikiAnswers is reporting this evening that they have passed the one millionth question. For those of you who keep score, the question was, "Are there readily available substitutes for gold in industrial applications?" Today's interesting question is, "Why is pumpkin pie served on Thanksgiving and not on Halloween?" I can only guess it's because Halloween was created way before there was an America :)

WikiAnswers unique monthly visitor count in the U.S. has grown 317%, to over four million reports Comscore. This ranks WikiAnswers as the second-fastest growing domain of the top 1,500. Community Director Jay Bailey noted that yesterday, registered users grew by 1,867, a new daily record.

The best part about WikiAnswers is how smart of a marketing idea it is. People love to share bits of knowledge they have so this site should continue to grow. Of couse, should they want to increase pageviews, just have the guides as more questions because you know someone will answer. Their most popular users (example user) seem to contribute a huge number of the questions to the site.