Hey, putting together an FAQ, and I need to come up with some questions about different subject matters.

I remember some time ago now, Microsoft ad labs having some type of database for long-tail questions. It was like the Google keyword tool, where you input a keyword, and it spits out all the questions based around the keyword you entered.

Does anybody know what URL it was, I've tried for the past hour trying to find it with Google, and so far no luck.

Thanks
Mark