Twitter had 305 million active users by the end of 2015. By contrast, Facebook has 1.6 billion. Google has eight products with over 1 billion users each. Even Instagram surpassed Twitter in September, growing to 400 million users. Though Twitter has been able to effectively generate sales from sponsored tweets and partnerships, it's growing at a snail's pace. It's still a relatively niche product that hasn't been able to expand its reach the way that its rivals have. New management, products, designs and features haven't done much to move the needle. Twitter's growth has stagnated, and it's nowhere close to turning a profit. Get the full story at CNN Money and The Verge Read also "A rant about why Twitter’s past failures make it nearly unfixable" at TechCrunch