Kenneth F Warren 
In Defense Of Public Opinion Polling [PDF ebook] 

In the 2000 national elections, $100 million was spent on campaign polling alone. A $5 billion industry from Gallup to Zogby, public opinion polling is growing rapidly with the explosion of consumer-oriented market research, political and media polling, and controversial Internet polling. By many measures from editorial cartoons to bumper stickers we hate pollsters and their polls. We think of polling as hopelessly flawed, invasive of our privacy, and just plain annoying. At times we even argue that polling is illegal, unconstitutional, and downright un-American. Yet we crave the information polling provides. What do other Americans think about gun control? School vouchers? Airline performance?