Michael and Xochi Birch launch Bebo, one of the first social networks, and ride it to extraordinary heights before it all comes crashing down. In the conclusion to this two-part story, we tell of the rise and collapse of Bebo, and how the Birches become billionaires anyway.  In this new eight-part series, the Sunday Times' technology correspondent Danny Fortson tells the story of the valley through portraits of key players through its short history.  DIVE DEEPER - longform interviews on Danny's sister podcast, Danny In The Valley - read Danny's longform commentary on the series at thetimes.co.uk Produced by Cheeka Eyers at Rethink Audio for Wireless Studios and The Sunday Times. Matt Hall is the executive producer for Wireless Studios. For information regarding your data privacy, visit acast.com/privacy