Two potential sources that I may use in my essay are:

Flatter World and Thicker Walls? Blogs, Censorship and Civic Discourse in China
Rebecca MacKinnon
Public Choice , Vol. 134, No. 1/2, Blogs, Politics and Power (Jan., 2008), pp. 31-46
Published by: Springer
Article Stable URL: http://www.jstor.org/stable/27698209

and

The Influence of “Personal Influence” on the Study of Audiences
Sonia Livingstone
Annals of the American Academy of Political and Social Science , Vol. 608, Politics, Social Networks, and the History of Mass Communications Research: Rereading Personal Influence (Nov., 2006), pp. 233-250
Published by: Sage Publications, Inc. in association with the American Academy of Political and Social Science
Article Stable URL: http://www.jstor.org/stable/25097864

The first source could be useful in making a point on how there is a need or a feeling of control already in existence in relation to the internet and how we think. The entry discusses censorship in China and I could use some of the information in this source to talk about regulation of the levels of exposure one might find and the resulting thoughts or beliefs that stem out of it.

The second source Could be useful in researching the ways in which media tries to analyze the mind of the audiences and use that information to manipulate certain things to achieve a desired effect from audiences. I could use this source to argue the point that advertisers, now online, are using many tactics to try to control the actions of people in relation to the ads and to shift their thoughts in favor of consuming the product.