An online link attracts you to something on YouTube. It looks interesting so you click the link. Soon the sidebar has other video suggestions for you to watch that seem related to this and other videos you’ve watched before. How are they chosen? Is someone else going to make money on your choices? Is some group trying to sway your emotional or political opinions?
Smarter Every Day explores the algorithms used to make those choices and other content in the 3 large social media platforms of YouTube, Twitter, and Facebook. This 20 minute video is part 1 of 3. I think you will find it very interesting and maybe surprising.
How I See It 
Nice! Thank you, Jim.
If I see a link that looks suspicious, I will open it in incognito mode and hope it doesn’t mess with me.