The supply and commerce of footage is flooding the internet.
It can be youtubers talking feet, fetish sites with feet or lists where celebrity feet are ranked.
Some posts contain price lists and information on how payment services such as Swish or Paypal are used.
- I have seen that people got Swish when they sold footage, but it is a little strange that someone wants images on one's disgusting feet, says 12-year-old Isabell Runebert.
Hear what the children from year 6 at Bromstensskolan in Spånga think about footage on social media.
Hear the children tell what they think about the phenomenon in the video.