Best source of in-depth news or anaylsis?

What are some good news sources that explore topics in depth?

You can list sources that are used by few people outside the topics they cover if you want.

Here is my list:

The New Yorker
Atlantic Monthly
New York Times Magazine
Frontline
Charlie Rose (for in-depth interviews)
538 (for in-depth polling analysis)
This American Life
The House Next Door (for movie/TV analysis)
What’s Alan Watching (for TV analysis)

Arts and Letters Daily http://aldaily.com/

The BBC