What's more, traditional media lacks the courage to question the government's policies. Government is clearly not all-powerful, and it might not always represent the optimal interest of the public when check and balance are not in place.

It is indispensable, especially in the modern world, to leave enough space for debating in order not to let the decisions be influenced by interest groups.

Given there was no sufficient hearing system which prevented officials from making mistakes at the very beginning, it is fairly important for the new media to keep an eye on the government before it is too late to do anything. Microblogs could play an active role in this respect.

In fact, scandals like corruptions and food safety problems have drawn the ire of many for a long time and it is better to ease these problems rather than ignore.

Sayings like "Social stability comes before everything" do make sense, but to blindly create a harmonious panorama by controlling public voices could only lead to bigger instability.

And people don't have to worry too much about rumors and defamations on microblogs because the people involved could resort to laws to protect their rights and interests.

We can't separate freedom of speech and responsibility for what you say, but the courts are the appropriate way to resolve these discussions, not pre-emptive censorship.

The popularity of China's microblogs is an extension of the power of traditional media combined with new technology and the willingness of the Chinese public to participate in national affairs.

We should hold a positive and open attitude toward their rising power and influence, viewing them as an effective way to get feedback from the public, and a useful supplement to the traditional media.

The author is deputy director of CEIBS Lujiazui International Finance Research Center and CEIBS Case Center. lgary@ceibs.edu