Sina Corp. (NASDAQ: SINA) which owns China's biggest micro blogging site posted a $11.5 million dollar lost in its quarterly report today, compared to a $33.2 million dollar profit a year ago. Many analyst were expecting profits for the company. The website has over 500 million users, but numbers show that the have been moving over to their mobile devices more instead of using their desktops. Its seems like this company is moving slow and investing too much money on the ads for their website compared to their mobile device app. We have already seen this with Google (NASDAQ: GOOG) and Facebook (NASDAQ: FB). Google missed expectations in their last financial report because they haven't monetized their mobile ads. Compared to Facebook who beat expectations because they moved quickly enough to make more money off their mobile ads because a majority of their users log into Facebook on their cell phones.