If I am going to grade the lectures about Internet/SNS, I will give Prof. Comer's lecture 5 out of 5 points, and Dr. Yadav's lecture 3.5 out of 5.

The reason is, Prof. Comer's lecture provided a very clear structure about how Internet was developed, why it had a hard time in the early years, how it is different from the traditional telephone network. Also he gave us a clear image of “Internet is a network of networks”, and stated the challenges we're facing.

And since Dr. Yadav, the lectures became more about ethic problems. I saw a lot of ethic / moral problems, and they don't look like have been or being solved so much. For example, SNS is highly developed, people are more likely to communicate online, and spend less time in talking face-to-face – how is that; can that be a problem? My answer is: well, that is Internet is changing our life; it is not necessary to concern too much about face-to-face communications.

And finally, I consider myself as a programmer so far; and I am able to keep a good balance in my life. Although it is hard for me to solve social problems, but I believe if Internet really causing a lot of ethic problems and not possible to resolve, then it will be deprecated sooner or later – and it is not! So I think, the society can have a balanced order with Internet.

If you are interested in talking about the Internet in China with me, I would be love to. I saw a lot of funny and ridiculous thing happening between the government and the Internet users in China. The government seems to be too nervous to make a lot of policy about Internet; it is making the situation going away from their expectation, and breaking the ecological equilibrium of a lot of things.