La Vaca is a collective of fabulous independent journalists in Buenos Aires. They've written a book, Sin Patron, about the recovered company movement that includes a contact list of all the factories, what they produce, how many workers they have, their exact legal situation, etc.
Esteban Magnani, "El Cambio Silencio" (The Silent Change) Esteban Magnani was one of our core crew members in Argentina. He subsequently wrote a book about the movement called “El Cambio Silencio” - The Silent Change. He has lots of info on his website in English.