Why was the video sharing platform, Vine, closed down? Sean Farrington discovers what happened to the app which pioneered short, shareable videos on social media. Sean speaks to one of Vine's founders, Rus Yusupov, the Vine content creator, Eric Dunn, and the BBC's Technology Editor, Zoe Kleinman. Alongside them all analysing Vine's fortunes is the self-made millionaire and serial entrepreneur, Sam White. Produced by Viant Siddique. Toast is a BBC Audio North production for Radio 4 and BBC Sounds. You can email the programme at [email protected] Feel free to suggest topics which could be covered in future episodes. Sliced Bread returns for a new batch of investigations in May. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.