Google(s goog)'s earliest social network, the decade-old Orkut, will shut its virtual doors at the end of September, the company said on Monday. This mainly affects Brazilians, as the service has been more or less specific to that country for the last 6 years (it was also successful in India for a while). Seriously, Orkut was huge in Brazil -- Facebook only overtook it there two and a half years ago -- but now it has well under 1 percent of the market. In a blog post on Monday, Google said new Orkut registrations were now closed and people could export their photos and other data using Google Takeout.