Klout and StumbleUpon also shut down this year it hasnt been a good year for alternative social media websites

I think Facebook won't fall any time soon, its combination of Instagram and Whatsapp make it a giant that doesn't have a single point of failure like other brands did. I do think there are opportunites to eat away its market share but as it contiues to grow in developing nations in Africa and Asia it stil has plenty of room to add new users