So if the NSA can do it, I can do it too right? I be charged with illegal wiretapping?
There is an browser addon called Disconnect that blocks your browser from loading most if not all tracking resources, this includes the social media buttons used by Facebook to track your browsing. I put it onto every browser I come into contact with that supports it. https://disconnect.me/
After a few months of receiving automated emals from Linked-in of behalf of people I had worked with, I finally created a filer to send them to trash. Most of the people I talked to could not remember giving consent to Linked-in to use their contact lists. Hopefully major email providers will just start sending the emails to spam by default