Two months ago Weibo joined a US$100 million round of investment in personalized news app Toutiao. The portal ad revenue only increased 5.9% year-over-year in Q2 2014 and non-ad revenues declined 11%. Toutiao is the largest news app on Weibo in terms of shared posts, according to Sina management. What’s surprising is it isn’t Sina that built such an app and leveraged Weibo to become the largest news service on the platform. Weibo reported a 105% year-over-year increase in total revenue in the quarter, but still recorded a net loss of US$15.4 million.