Tracking should be illegal. Period. Full stop.
It should incur the same penalties as stalking, identity theft, and cyber crimes. If Facebook still wants to track us, Zuckerberg has to be willing to personally face charges, trial, fines, and jail time.
If you should think tracking is acceptable in any form, then these companies should be required to *pay* the users they are tracking a fixed percentage of the revenue they receive — say, for example, just off the top of my head

, 15% or 30%, depending on how big a company it is and how extensive or egregious the tracking is.
Any app developer who uses a Facebook or Google embedded SDK or their tracking services should face the same penalties.
The extent of tracking is staggering. This is old news to many, but you don't even have to have joined Facebook or have accounts with Google, but they still track you. Go to a news website, or launch a news app, many of which open up embedded web pages, and read a bunch of articles and columns. Then, check your Safari cookies list. It will be chockfull of Facebook, Google, Double Click, and other trackers.
Geoffrey Fowler did a series of investigative reports for The Washington Post on all this tracking — it's worth checking out.