classroom exxhange in Argentina and Michigan

I am looking for a classroom in Argentina, preferably in Buenos Aries that would like to exchange letters, via snail mail and more tech. savey activities if possible with my students. We do not speak Spanish but could help your students practice their English. This is more of a "touch the world" culturally speaking than language development on our part however, that could be a component for the other school for sure. I teach 11 and 12 year olds but would be willing to interface with ages between 9-16. I will have 24 students this fall (September) and would begin then. I plan on coming to Argentina in November myself. Anyone interested and/or have knowledge as to where I can best find a likely class?