There may be a new financial bubble forming in the start up tech companies such as Snapchat, Uber and Pinterest. Those companies are worth around $93 billion, which is more than well known companies like Twitter (NYSE: TWTR) or Yahoo (NASDAQ: YHOO). Right now these new companies haven't gone public yet, so analysts don't know whether or not these companies will crash or not. According to CNN, the reason analysts are scared is these companies could make billions of dollars, but do not have the business model to grow like more successful companies do. The good news is if there is a bubble it won't be as bad as the dot.com bubble, where in the early 2000s people invested in tech companies went bust shortly after going public. For more tech news, click here.