In this modern society which fulls of electronic products and new technology, advertising probably is the most powerful mean for the enterprise to appeal to their customer, especially potential ones. However, there are many terrible advertisements as well. In my opinion, the vital point is never the effects that advertisement brings , otherwise, is the weak identify ability of the public. For instance, there are millions of scams around Youtube which is a very popular website, and a lot of people keep getting rubbed on it. What is the reason? I believe the greed and lack of sense of self-defend are the primary reason.