Sarah, you are totally correct that the demographic breakdown 12-24 is useless. There is such a huge deveopmental difference between 12 and 24 that it makes the statistic meaningless. As a mom,foster mom and now grandma, I can break this down for you: 1)12-13 Your mother still tries to tell you what to do on the internets and you probably don't have a PC in your room. Maybe you are sneaking on to MySpace 2)14-16 You might try Twitter because she tells you NOT to. You might also have your own cell phone by now. You are an adolescent in full rebellion. If you are in school, you have now heard of Twitter. If you have already run away or dropped out, you are pretty tech illiterate. You are texting up a storm if you have a device. You think Twitter is pretty useless if you text. 3)17-21 You are in college, and doing whatever your college friends do. It's still probably Facebook. But if you have something to say to the adult world, you are trying out Twitter. Now, these are only data points from my experience with family members (large extended family) and very advanced teens like Mark Bao and Daniel Bru, but they convince me that breaking the demographic down in statistics like this renders the entire premise of that NYT story meaningless. - Francine Hardaway from FriendFeed MT Plugin