Net Effect of Globalization

According to the book 'The World is Flat' written by Thomas Friedman, Globialization has effected our life in many good ways. For example, outsourcing has make our life better and easy. He also mentioned that the creation of window and open sourcing has tide world tiny by allowing many people to access internet and share their own idea and opinion. These factors were believed to make world smaller and flat.
It seems like that the globalization is only a good thing. However, Globalization also has dark sides. For example, people in middle level's lifes are getting better although low level people's lifes are getting worst and worst. Since many information that contains unique ideas spread to all over the countriesm, it can ruin some country's culture or their religious belief. As we watched, in '30 days' the guy named 'crise' lost his job because there was foreign worker who could do his job easily in less pay but in better quality.