- Public records (property records, dmv, etc.) - Financial institutions/companies (plaid, banks, credit bureau, mortgage providers, reward credit cards, automotive loan providers, etc.) - Loyalty program (macy/nordstorms, safeway, vons, walgreens, etc.) - Warranty providers (appliance & car warranty registrations), etc..

People and media get riled up about Google and Facebook but the data that they have on me is pretty coarse and pales in comparison to what DataLogix, which is a company that Oracle acquired, and other companies have been able to build. We are not rational when it comes to these arguments.

A lot of applications sell user data. Like menstrual cycle for Flo, seropositive status for Grindr. A lot of apps sell your location data.

Plus there is a very overlooked category of corporate software selling data, like payrolls. This can be used to target you better (eg can you afford that product). Another example is Salesforce selling consumer data to marketing departments: https://www.salesforce.com/products/marketing-cloud/data-sha...

BlueKai/pixel tracking iirc is a core part, the rest of it is stuff like Bluetooth receivers on top of grocery isles while you have your Bluetooth on, etc.

My question as well