L'arbre de possibles combinacions per a la presidència EUA <a href="http://www.nytimes.com/interactive/2012/11/02/us/politics/paths-to-the-white-house.html">http://www.nytimes.com/interactive/2012/11/02/us/politics/paths-to-the-white-house.html</a> #infoexplorers<br>
<br>Raf<br>