Google ‘paid millions to Mastercard to track credit card spending’ to find out whether people are being successfully influenced by its online adverts

• Multi-million dollar agreement between the firms took four years to negotiate
• Google can link purchases of Mastercard customers to their email addresses
• These addresses are used to track the online activity of those credit card users 
• This information allows Google to tell if you look at an online advertisement in your web browser or app, then later buy the product in a physical store  

Adblocker stops this.  That is why so many sites have become aggressive towards visitors that use it.  These companies have no morals, no morals at all.

I use both Adblocker and Block Site.  When a site blanks the screen and demands I whitelist them or disable Adblocker, I block the site.  Then I won’t be directed there by a blind link.