Privacy 2.0

Let's talk about internet privacy. How much privacy can we expect to have in an online world where we share everything about ourselves for the public to see, and social media sites sell your information to third party companies who want to directly advertise to you?
I feel like the whole point of social media has become an opportunity to share intimate details about our lives with other people on the internet. Now people are complaining that people on the internet have too much information about us. People either say that privacy is an obsolete idea, or that there's not enough being done to protect us from those who would use our information with malicious intentions.
Back in the day, when we all had Myspace accounts, people weren't very worried about who was viewing our information. Now that our lives are lived largely online, and we hear stories every day about people's information being used dishonestly, people losing their jobs, and cyberbullied, and people are scared. People are starting to smarten up and not put so much out there on the internet.
There is hope, though. Younger social media users are being way more careful about what kinds of information they post online. Who do you know that still posts their personal phone number online? Probably no one... Because people are getting wise.
Not only are there people trolling your social media accounts for information about you, there are also third party companies who are buying your information from social media sites like Facebook. Their goal is to directly advertise to you based on your browsing history, or your "likes" on Facebook posts, and people are freakin' out about it.
Personally, I'm not that worried about it. Perhaps because I've not had a personal AM they type of person who will buy something based purely on the marketing prowess of a company because great marketing schemes are something that I can appreciate.