Courts sometimes use the "expectation of privacy" as a test for limiting governmental monitoring. Thus, for example, the police can monitor your behavior without a warrant when you are in a public place but not when you are talking on your phone.

• What expectations of privacy do you have when you are surfing the web?
• Ordering something from Amazon or Netflix?
• Spending time on Facebook?

b. Physically stalking someone can be a crime.

• Are there parallels between physically stalking someone and regularly monitoring his or her activities on the web?
• How are they similar?
• How are they different?

c. Most online tracking is done through the use of "cookies," small files stored on a computer or mobile device that provide information about past browsing history.

• Should consumers have a right to opt out, or should their explicit consent be required before cookies are installed?

d. Information about your online behavior is a commodity that can be bought and sold.

• Who should own this personal information?
• Should it be available for sale?
• By whom?