This official Youtube Trends Map is interesting for a number of reasons. First and foremost, if you encounter a video that your friends must see, you can check the map and see if you're just feeling in line with the rest of the nation. Probably so - that's how these viral things tend to work. Secondly, and perhaps more interestingly, is that the tool has Gender and Age filtering - making it possible to get a peek at exactly what it is that 65+ year olds are watching on Youtube.