I was surprised at the amount of trackers on the net after I installed Ghostery. News publishers are the worst in my experience - up to 20 ad/tracking plugs on one page. Insane. Sadly, some sites do not work properly if you (Ghostery) disables them.

Unlike the author, it's not the amount of JS that bothers me, but the amount of trackers involved. Companies you never hear about collecting loads of data on your online activity.

I was looking for shoes on one site then days later visited a totally unrelated resource. They showed me ad with the exact boots I viewed. Thankfully, with Ghostery this doesn't happen.