eBoobs is probably one of the useless but funniest web apps available related to Twitter. It measures your popularity using cup size.
Using only US sizes to compare your popularity, this web app tells you immediately how popular you are just by entering your Twitter user name.

Ok, those aren’t mine; those are from @aplusk (Ashton Kutcher), no surprise there I guess. This is the result for mine:

Anyway, they say those are nice boobies! So that means… what?
Only around 15% of all the Twitter users are less than 25 years old, who would know? An official report from Morgan Stanley says that teenagers just don’t use Twitter.
You won’t be surprised if I tell you that people under 25 years are the main Internet users, only this group of people takes the 25% of all population; but they also just represent 16% of all Twitter.
And which age group takes the majority on Twitter? 25-54 years old, they take up to 64% of the Twitter population (me included of course). 20% for people over 55 years and 16% for those under 25. Yeap, you read it right, 20% of Twitter users are over 55 years.

If you start thinking about it (and when I say “thinking” I mean checking your list of followers and following) you would probably notice that you have a bunch of friends, a selected group of celebrities (yes, I know, we all have @aplusk), and would probably see a large number of marketers, companies, brands, channels, journalists or even PR guys. And that’s not exactly the main focus of teens these days.
It doesn’t feel like the teen wave didn’t appear just yet in Twitter? Can we expect a new teen market for Twitter as it was for Facebook?