It was in Indonesia three years ago that Helani Galpaya first noticed the anomaly. Indonesians surveyed by Galpaya told her that they didn't use the internet. But in focus groups, they would talk enthusiastically about how much time they spent on Facebook. Galpaya, a researcher (and now CEO) with LIRNEasia, a think tank, called Rohan Samarajiva, her boss...