Stefan Martens's Library tagged "sentiment engine" →  View Popular, Search in Google

Think of the non-commercial, public interest kind of data that could be acquired. When the economic stimulus plan of 2009 was first announced on national television - what was the reaction of people in their mid twenties who lived in the Mid West of the US? Was that collective reaction substantially different from the reaction of self-identified queer people of color living in the North East US? How did the public reaction to the proposed plan change one hour, one day or one week after the announcement? This is all very interesting and potentially valuable data that could be, for the first time in history, available in near real time. Just by listening to what people are talking about in status updates and comments.

Far more likely is that Facebook will perform political polls and sell access to product feedback survey systems to advertisers