The Internet is truly a powerful tool; with it, you really can stay informed about the world without leaving your home. The advent of Web 2.0 allows you to make changes in the world without stepping out as well. How amazing! Open your browser, search on Baidu or Google for knowledge you want to know; open various portals to see what's happening today; check blogs to see what friends have posted; finally, update your personal site on WordPress and boost your Alexa ranking. Perhaps you're also an RSS subscriber, which lets you accomplish all of the above with even fewer steps. Everything is so wonderful!