It's a lot more than 105 companies. But I always hated the word tracking for them. They fall into many different categories. Some companies collect behavioral

It's a lot more than 105 companies. But I always hated the word tracking for them. They fall into many different categories. Some companies collect behavioral data, others personally identifiable information, others bring offline info online, some are seen across various sites but only because they are integrated in other services. So they aren't necessarily tracking you but partnering with one that is. Also a lot of these are the backbone of ad:tech which powers the free services people use daily. Now some of them are definitely not necessary and worthy of blocking, so really it comes down to what privacy means to you. Personally I'm fine with most, but many people are not. Just remember the old overused phrase does stand true. If you're not paying for it, you are the product.