Facebook was looking at which links I clicked on, and it was noticing that I was clicking more on my liberal friends' links than on my conservative friends' links. And without consulting me about it, it had edited them out. They disappeared.

The algorithms that orchestrate our ads are starting to orchestrate our lives.

We thought that the Internet was going to connect us all together. As a young geek in rural Maine, I got excited about the Internet because it seemed that I could be connected to the world. What it's looking like increasingly is that the Web is connecting us back to ourselves.

If you only have one shot at writing a headline, there's a lot of pressure.

To be a good citizen, it's important to be able to put yourself in other people's shoes and see the big picture. If everything you see is rooted in your own identity, that becomes difficult or impossible.

It feels great to have your own views reflected back to you, and you feel so right, but actually it's very dangerous. Because to make good decisions, you need to have a clear view of what all the options are.

If you Google some sites about the link between vaccines and autism, you can very quickly find that Google is repeating back to you your view about whether that link exists and not what scientists know, which is that there isn't a link between vaccines and autism. It's a feedback loop that's invisible.