
Tuesday October 6, Javier Pelaez (a blogger who is interested on science and has a blog that talks about it just as a hobby) asked in his Twitter profile how many persons would write in their blogs about the trim in the Spanish investment and development (I+D) budget. Some blogs began to mobilize themselves; hundreds of users began to support the cause using the social networks, and what began to as a simple tweet finished as a social group of real political pressure.

Last July 30th, soon after terrorist group ETA killed 2 young policemen in Palma de Mallorca (Spain), social networks began to mobilize against the killings.
If in previous attacks this kind of protest was mainly expressed through individual blogs, especially through people posting black ribbons on their pages and commentaries, after this new attack online social networks were full of different tweets, images and status posts.