The PAC did not disclose exactly what ads the firm worked on, or the specifics of the data and targeting services it provided. (buzzfeed.com)
The first is communication between social media ad firms and their clients. (canadianbusiness.com)
While data trackers make a lot of the information about your digital activity somewhat anonymous to protect privacy, the information can still be used by digital ad firms to match you with an IP address or social media profile. (hanfordsentinel.com)