This question already has an answer here:
I understand both sides of the "Lists questions" debate. Personally I find them very informative and end up on those threads often through google. But I also understand the desire to keep all the se sites "pure" with respects to the area.
So why couldn't there be a lists.se site that caters to these kinds of questions? The tags could designate the type of list it is for. Then all those nasty horrible list questions that the mods hate, but many find so useful, could be migrated to a single site.