Just like the article, I also have imagined about how a business like Cyworld can do so well in the USA. Personally, I believe that human nature of people is the same the world over. However, there are noticeable differences in Korea. In Korea, we have a more advanced wireless infrastructure and a high concentration of advanced cell phone use. People do blogging using cell phones, for example. Therefore, time and location are no longer significant hurdles for virtual activities. Besides technology, the daily life style and culture are different between Korea and USA. All these factors matter in virtual world.