Some want to express their bold personal opinions which they would not express to their friends in their r eal life. Cyberspace has the complementary function in social activities for each individual. From the political perspective, cyberspace provides an alternative channel to present different political opinions and improve the democracy because the governm ent can not control the communication among everybody anymore. The power od control has been decentrialized in cyberspace. From the economic perspective, the increasing commercial activities in cyberspace will lead to a revolutionary change in traditiona l trade behaviors.
People can post an advertisement of their products through network.
In short, the users' behaviors and consumption patterns have been chan ged since the birth of cyberspace. These changes and adjustments will also have significant influences on the real world. Our individually cognized environment constitutes the total of our knowledge of the environment together with our imagination of it and thought about it. The similar situation can be applied to cyberspace. The users usually do not notice or perceive the physical environment in cyberspace such as the type of machines, operating systems, the protocol of networks and the topology of network.