Facebook to start paying money to Video Creators.

Facebook is to start paying some video creators for uploading their clips to the platform.

Videos that keep people watching for longer will earn a greater share of the revenue from these ads, with Facebook keeping 45% for itself.

Facebook says its users clock up four billion video views daily. One expert said it posed a threat to YouTube.

"Facebook is aggressively moving into the video space," said Eleni Marouli, advertising analyst at IHS consultancy.

Facebook made $3.3bn (£2.1bn) in ad revenue in the first quarter of 2015, 73% of it from mobile ads.

"Facebook is very adaptable," said Ms Marouli. "In 2012, they had zero mobile-ad revenue. In two years, they've raised that to over 60% of their ad income.

"Based on our forecasts, by 2018 Facebook will have 25% of online video ad revenue in Europe, and more in the US," said Ms Marouli.

Which kind of Videos to pay by Facebook ?

• Assume people cannot hear your videos. They often play automatically, without sound. Tell the story with on-screen text that explains what viewers are seeing
• If the video includes a sound bite, the text should summaries what is said, using some of the same words
• Do not put in too much detail. The BBC generally runs three sentences, up to three lines long, over 12 seconds
• Find out how different apps crop thumbnail images and where they superimpose play buttons and icons. Design text and images that fit - even though this can be a real headache
• Using music can add pace to a video, but make sure you have the rights.