The newspaper is owned by the same people who decided to stop printing the New Orleans Times-Picayune every day, and as Willamette Week reports:

Oregonian editors now indicate the paper is likely to follow suit, although no one is saying when that will happen or how many days the newspaper will drop from its publishing schedule.

“There’s just not enough advertising,” says Ken Doctor, a news industry analyst for Harvard University’s Nieman Journalism Lab. “[The paper's ownership] is acknowledging that daily print has ended its lifespan."