Ariell and Viviana run a great website that is full of information about living in Chile. They organise expat meet-ups and other events and connect foreigners living in towns and cities all over the country. The group already has over 800 members.
Theirs is a friendly and inclusive group- unlike a certain other chile forum, whose owner believes that slandering potential competition (and also potential business partners) and spreading absurd and baseless lies is an ethical and appropriate way to do business. I continue to shake my head in disbelief at his practices.
Anyway, enough of that: Go make some friends!