Bigger is better: Drop-down menus for web nav

So, Jakob Neilsen recently noted that mega drop-down menus are good. Mostly, this is good news. I’m not in total agreement with all of his recommendations: in my experience, click is better than hover for menus, and it seems that there’s some good evidence to support the use of other controls in the mega menus (although I know exactly why it can be a big problem, too). The folks at 37signals picked up on this, too, and have a good article on the topic.