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 Internet is showing us what it thinks we want to see, but not necessarily what we need to see.

I think it's easier than ever to hear only what you want to hear. That doesn't make a good citizen.

In a personalized world, important but complex or unpleasant issues are less likely to come to our attention at all.

In the last year, grassroots contributors like us gave more than $300 million to the Kerry campaign and the DNC, and proved that the Party doesn't need corporate cash to be competitive. Now it's our Party: we bought it, we own it, and we're going to take it back.

There's the part that I just want what I want, and I don't want to be bothered by anything else, and sort of the short-term more compulsive self. And then that's the longer-term, aspirational self that wants to be informed about the world and wants to be a good citizen. The best media basically helps us strike a balance between those two things.

Your computer monitor is a kind a one-way mirror, reflecting your own interests while algorithmic observers watch what you click.