I think there's a time to be private and a time to be public, and I think that companies like Facebook and Groupon are basically transformational companies. You don't come across them very often, and I'm pretty sure that they can continue to grow for a long time even being public.
You know among people who kind of travel a lot and have exposure to the United States and some other countries, they do have accounts, but you know, Russia is not exactly the place with multiple language skills so local networks kind of have an edge.