You're probably familiar with TED Talks, but did you know they're now international, with independent events held worldwide? There was recently a TED Talk in Rio (TEDx Rio), and there was another one held last year, also in Rio, called TEDx Sudeste. There have also been talks in São Paulo, Manaus and Porto Alegre. Here are some highlights from both Rio talks.
Pedro Franceschi - One of the world's youngest hackers
2011 videos after the jump.
Rodrigo Arboleda, from One Laptop Per Child
*I think there are some missing videos from 2011 that haven't been posted yet, since I'd read about different speakers that I can't find on the site.