Any Secondary School Teacher from South America Here?

Dear Group,
This is a special request.
I need to collect data for my thesis. I need to get in touch with teachers who teach the last 2 years of secondary school in south American countries including Chile, Uruguay and Bolivia, (other south American countries would also be welcome of course, though the surveys are in Spanish and that would not include Brazil, I am afraid)
If I could get in touch with some colleagues there, I would send them a survey to answer online and another to be answered by their students, I may also need to contact the head of the secondary school where they work for another short survey later.
Please let me know if any of you or any of your close colleagues fits this profile. It would be of great help!
Thanks a lot

Paula (in Argentina)
www.teach-with-internet.ning.com
www.explorando-web20.blogspot.com
www.helpingnorth.blogspot.com