via NBC news by by ALYSSA NEWCOMB

Pages that post hoax stories on Facebook will now be banned from advertising on the social network, marking the latest move in the ongoing battle to quell fake news.

A Facebook blog post said the move targets “instances of Pages using Facebook ads to build their audiences in order to distribute false news more broadly.

Fake news is "an endemic problem across a whole ecosystem so there is no silver bullet here, but it will contribute toward making it harder for people to exploit the system," David Carroll, an associate professor of media design at the New School, said.

Spreading fake news is of course a profitable business. Many pages have used advertisements to build their audience. When people click on their fake stories, those fake news purveyors can then make money off their readership by running ads on their sites. Facebook and Google do not allow fake news sites to use their advertising platforms.

"I don't think it is going to make the problem go away, but it is going to put a dent in it from being spread in news feed, assuming it is effectively enforced," Carroll said.

The complete story here > Spread fake news, prepare to pay the price.

BARCELONA, SPAIN - FEBRUARY 21:  Founder and CEO of Facebook Mark Zuckerber gives his speach during the presentation of the new Samsung Galaxy S7 and Samsung Galaxy S7 edge on February 21, 2016 in Barcelona, Spain. The annual Mobile World Congress will st