Really solid primer on the pending demise of 3rd party cookies and what it means

“Web publishers are giving you their content; advertisers agree to fund that content by paying for ads. And you agree to give mountains of personal data to hundreds of companies in the digital ad industry, whether you realize it or not.

That’s the bargain that has funded free web publishing since the mid-1990s, and for the past quarter century it’s been powered by a key piece of technology known as third-party cookies. These are tiny but crucial identifiers that track internet users’ every move across the web. They help advertisers target ads and measure the effectiveness of their marketing campaigns. They’ve become one of the central technologies underpinning the business model of publishing on the web.

And they’re about to die.“