Contrasting between homophily and beware online filter bubbles

     In our society, from Eli Pariser's point of view, this is extremely harmful to people who use the Internet. From time to time, there will be from forms of info for different people on the same subject, but this is set to be, which means there will hardly be any counter-argument presented. This action means that people are constantly under the processed depiction of favors, this personalized fed information, is very hard for people to consume something other than tailored information.  Moreover, the internet is constantly gathering people's information, our interests, people's comments, our opinions and from Google to Facebook, everyone is doing this to each other. On the other hand, St Thompson suggests that in this news that homophily has many benefits to people, due to the consistency and familiarity, people would get more information they really be interested in, and also this is the best way they would like their information be framed. In the end, the blockage of set preferences due to personal tendency can be result in a new and productive way to receive information because it can bring more convenient in people's future life.

Obama campaign's use of social networking tools

    Nowadays, technology and network become more and more useful in people's daily life, in this article, as Obama used social technology helped himself to deal the brink of the presidency.  Moreover, Obama has a website called www.my.barackobama.com. Almost 104.000 Texas had joined on it. The most important part is the MyBo gave the Obama team the instant capacity to wage fully networked campaign warfare. Moreover, the Mybo made people think that they are close to Obama.     In the article of "How Obama really did it", the author provided us a thorough inspection of every detail in the Obama campaign. From slogans to the important role of the internet played during the campaign. Money was distributed under precise consumption. From the followers on different Social Networking platforms, gave Obama's campaign a strong momentum, the public opinion was favored by the constant strategic plays of Obama's online publicity. It provided the voter's a sense that Obama was very close to them through interactions such as tweets and face book status updates. The magnificent public relations capacity social networking presented was absolutely stunning, popularity rating was skyrocketing, everyone had been heard of Obama because he is really famous.  

The issue raised in the PBS presentation

         After finished watching this news, it is introducing how the Internet can influence a students' personal life because students try to create a new life on the Internet to make more friends and say something they usually would not say to other people online. Many teenagers are self-based and shy, they feel very embarrassed to talk and know other people in their real life, so this is the only way that they can release their emotion on the Internet and share it with other people who are doing to same thing online. 
        This news wants to illustrate that many parents are worried about their children will be more dangerous in this society because they just post their own photos and talk some very privacy secrets on the Internet. It is very easy to get themselves into a risk.On the other hand, the teachers and parents are preventing the online predators and cyberbullying to all the teenagers because many bad people could know students' personal information and daily activities from the Internet. If the people who get these information on the Internet, they may track these students' daily life and plan some schemes to set up them. There have some examples on this news prove that many teenagers died and hurt by social networking because the Internet increasing the speed of students know more about the society. Some people try to put other people's scandals and videos on the Internet, it is a very immoral way to hurt people and bring some serious impact to their future life.
        However, the students are having different opinions to parents, because they still think the Internet can help their life become better, because some students said that they can control themselves very well. Internet is a faster way to get students into our community and taste different things, we need to accept it in this time.