[lince]

Maybe other people does not appreciate your work, but my girlfriend (who study marketing) and me have gained some insight about Twitter users and countries with Internet access [1].

Great work and thank you!

[1] I know this last is arguable: In some countries, Twitter is not the main microblogging service.

[Anon84]

You might want to take a look at this for a view on Twitter Demographics:

http://www.ccs.neu.edu/home/amislove/publications/Twitter-IC...

and this for how one might be able to do "serious" predictions using Twitter as a proxy:

http://www.bgoncalves.com/component/jdownloads/finish/3/39.h...