Denver's Rocky Mountain News closed in February. The Seattle Post-Intelligencer published its last print edition on Tuesday, and the threat of closure has been levied against the San Francisco Chronicle - which lost more than $1 million a week last year.

Earlier this month, Time magazine identified the "10 major newspapers that will either fold or go digital next."

And the Associated Press summarized in a March 15 article: "Four newspaper companies, including the owners of the Los Angeles Times and Chicago Tribune and The Philadelphia Inquirer, have sought Chapter 11 bankruptcy protection in recent months."