- Data that you consciously or willingly give companies/organizations/institutions
- e.g. You sign up for a cooking class and provide your name and credit card information
- Data that is automatically monitored or collected
- e.g. when you signed up for that class, there's a time stamp and information about how you accessed the registration site (e.g. Did you google the registration site, or did you go to the organization's homepage and nagivate from there to the registration page?)
- Data that's modeled or predicted from other data
- e.g. Based on you interest in cooking, the site might suggest other classes you would possibly be interested in
(From Who Controls Your Data?)
