Miniature Facebook banners are seen on snacks prepared for the visit by Facebook's Chief Operating Officer in Paris, France, January 17, 2017. REUTERS/Philippe Wojazer

By Douglas Busvine

COLOGNE, Germany (Reuters) - Facebook has tightened its rules on who can make money from advertising on its network, responding to criticism that it is too simple for providers of fake news and sensational headlines to cash in.

The world's largest social network implemented the new standards with immediate effect to make it clearer which publishers can earn money on Facebook and with what content.

The new standards coincided with an appearance by Chief Operating Officer Sheryl Sandberg in Germany, one of Facebook's toughest critics on hate speech and safeguarding privacy.

Facebook, together with Alphabet's Google, accounts for around two fifths of internet advertising, which is forecast by consultancy Zenith to grow by 13 percent to $205 billion this year – overtaking television as the biggest channel for companies to pitch their wares to consumers.

Marketing executives have criticized Facebook for failing to ensure that the digital ads distributed to its more than 2 billion active users reach their intended audience.

It has also drawn criticism from major advertisers for inflating its audience figures and not adequately tracking ads, which were sometimes placed alongside content detrimental to the brands being promoted.

On Wednesday, Facebook said it would seek accreditation from the Media Ratings Council, a U.S. non-profit organization, for audience measurement services.

"We take very seriously our responsibility to earn and maintain the trust of people in businesses," Sandberg told dmexco, a major digital marketing gathering in Cologne.

"We hear their concerns about safe environments, about standards, about measurement, and this is critical to us," she said. "We're working hard to roll things out that give you more control over where your ads run, and more knowledge about where your ads run, before, during and after campaign."

COMMUNITY STANDARDS

To make money on Facebook in future, content creators and publishers will have to comply with its so-called community standards, which seek to ensure that content is authentic, not offensive and adheres to its guidelines.

Those publishing content flagged as misinformation or false news may be ruled ineligible to profit from Facebook, as would creators of clickbait and sensationalism, according to the rules seen by Reuters.

Facebook's guidelines for monetization give broad definitions of content that would be disallowed – including “family entertainment characters engaged in violent, sexualized, or otherwise inappropriate behavior”.

Also covered are depictions of death, casualties and physical injuries in tragedies such as natural disasters; and content that is incendiary, inflammatory, demeaning or disparaging toward people or groups.

Facebook said it will provide post-campaign feedback to advertisers that clearly identifies the publishers that ran their ads.

Facebook will also step up its monitoring of hate speech, adding 3,000 content reviewers to nearly double the size of its existing team, Senior Vice President for Global Marketing Solutions Carolyn Everson said in a blog post.

"As soon as we determine that content has breached our community standards, we remove it. With a community as large as Facebook, however, zero tolerance cannot mean zero occurrence," she said.

Germany has led the way in demanding action on hate speech. Its parliament passed a law in June to introduce fines of up to 50 million euros ($60 million) for social media networks if they fail to remove hateful postings promptly.

(Reporting by Douglas Busvine; Editing by Emma Thomasson and Keith Weir)