In an essay and handy infographic, DeObfuscate lays out the inverse relationship between Facebook's growing market share and the erosion of user privacy.
Related: rocket.ly's list of 10 reasons you should delete your account on Facebook, and why Primevector thinks canceling out of Facebook is a great idea right about now.
Finally, words of wisdom tweeted by Tim Spalding over the weekend:
Why do free social networks tilt inevitably toward user exploitation? Because you're not their customer, you're their product.