We hear a lot about the negatives of social media - but what about the good things? From connecting people around the world to increasing the numbers of blood donors, the BBC's Cyber Security reporter, Joe Tidy, explains some of the benefits.

This video is part of our series answering your questions from around the world. Watch more here:    • Your Questions Answered  

BBC My World is a new show for young people around the world, brought to you by executive producers Angelina Jolie and the BBC World Service.

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