Is social media isolating the audience?
This week we take a closer look at Facebook, and the BBC's increasing use of it. It claims to have 750 million users worldwide.
One in five webpages opened in the US is a Facebook page.
So, what happens to more conventional listeners who don't wish to sign up to the digital revolution?
This a question prompted by Alex Lee, who writes in with her fears that by choosing not to become a member of Facebook, she is being left out of the BBC conversation.
To answer Alex's fears, and also to have a more general discussion about social media, I'm joined by Julian Siddle, a BBC science programme maker, who has been dealing with social media since the very beginning.
Julian strongly argues the case for Facebook, highlighting the fact that the social media conversation will be happening anyway, so it would be foolish of the BBC to not engage with it.
Rajan Datar is the presenter of Over To You.
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