The average person feels that they are getting more benefit out of Google searches, Gmail, Facebook, cell phones, and credit cards for that matter, then they are being harmed by volunteering so much information to the corporations who run these businesses.
If you think the U.S. is headed in the direction of outlawing alcohol or teaching creationism is all schools, I respectfully suggest you find something different to worry about -- maybe pot... wait, we are becoming more lenient on it as well.
I find it a bit silly, that when the government adopts new technology to fight crime, everyone brings up their pet boogey-man to try to strike fear in their like-minded citizens. I honestly can't understand if you are in support of, for instance, using web surveillance technology to capture and prosecute abortion clinic bombers or not.