The amount of sites who stalk you is increasingly scary...

If you use Google Chrome, which is the best browser in case you live in a hole, you can block all of these scary sites yearning for information on you:
https://chrome.google.com/extensions/detail/jeoacafpbcihiomhlakheieifhpjdfeo

Here is a perfect example: Gizmodo.com. Innocent right? I have seen up to 17 trackers. In this image, it only found 10.

Edit: Another site shows 30 trackers! 

In the extension's description, it shows an image with 21 trackers.