Source Notes is a column by Stephen Harrison for Slate magazine covering internet knowledge and facts. Articles are updated here monthly.

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January 28, 2019

The reason is six degrees from Kevin Bacon.

February 15, 2019

An alarmingly deep dive into the shallow Daily Quotes skill from the Amazon Echo.

March 7, 2019

Circular reporting is a real problem on platforms like Wikipedia—and it’s harder to solve than it looks.

March 26, 2019

The Wikipedia rule that makes it harder to create entries about lesser-known but important women from history.

April 15, 2019

Sometimes you have a moral obligation to review a business on Yelp or Google Reviews. Do it for the greater good.

April 16, 2019

Members of the Wikipedia community rapidly mobilized to rescue black hole scientist Katie Bouman’s page from deletion.