One April Fools' Day prank that has provoked a strong reaction is YouTube's claim that it is planning to stop accepting video uploads.
In a video addressed to users, a YouTube employee announces that the entire website was an attempt to "find the best video in the world" and that the company will spend the next decade reviewing all of the entries to pick a winner.
One user commented on the video "I almost had a heart attack ... That wasn't funny," while another expressed their dismay at having to "wait a whole 10 years" for the winner to be announced.
More top news
The world's populations of animals have dropped by more than half since the 1970s, according to a new survey by the WWF and the ZSL.
Did the International Space Station take a wrong turn?
The wife of a British aid worker held by Islamic State militants has recorded a message to his captors appealing for his life to be spared.