It’s fast, global, engaged and influential – so why isn’t Twitter flying?

While Facebook and Snapchat soar, the most immediate social media channel in the world has many experts worriedHow many tech companies are saddled with the problem of enjoying global fame but struggling with lacklustre performance? Not Facebook, which revealed in its results that it has nearly 1.5 billion users logging in each month around the world. Twitter, however, is an example where participation is lagging behind reputation.The company built around text-message-length “tweets” announce