Facebook  is researching Blockchain amid rumours that it wants to start its own Cryptocurrency, Facebook users in the US remain loyal despite the Cambridge Analytica scandal, Twitter is allegedly working on end to end secret direct messaging, Snapchat rolls back its hated redesign, Snapchat CEO Evan Spiegel made the most money last year, Tinder is trialing a new opt-in, location - tracking option as well as a message - first feature, Instagram suffers an outage, Users can now book holidays or order food on Instagram plus the network have released an emoji slider sticker