On october 30th of 2005, Dario Gallo, chief editor of Noticias magazine, published an entry [ES] with a picture of the entrance door to Quino building near Mafalda‘s home, at Chile 371, in San Telmo, Buenos Aires. Gallo wrote:

The funny thing is that neither the City's Government nor its Secretary of Culture had put a commemorative plaque. More than one tourist would stop to take his picture at that door that's been all over the world. Besides, they could have made a small historic circuit, from Mafaldas's home, through Don Manolo's store, to Quino's house. What were the impediments to make such a simple and enjoyable thing for big and small people?

Soon afterwards, Gallo and Pablo Mancini, who also writes in Noticias magazine, created a blog called La casa de Mafalda, which demanded that the city's authorities put a conmemorative plaque on the building on Chile street that signaled the place where Mafalda lived.

A city's legislator, Norberto Laporta, who belongs to the Socialist Party, presented the legal proposal which was finally approved on the last day of 2006 by the Legislatura de la Ciudad Autonoma de Buenos Aires. The plaque to be placed at 371 Chile St will simply say “Mafalda sat here”. You cand read more about this at Pablo Mancini's blog, where the complete approved law also appears.

Other blogs that covered this topic:

El triunfo BLOGER; La Casa donde Mafalda se… (La nuez)
Una ley que nació en un blog (ALT1040)
Mafalda tendrá su placa (La brújula verde)
Más Mafalda (Carpe Diem)
… y Mafalda tendrá su placa (Diario de Gestión)