Alexei Oreskovic

Could Twitter quitters crash its IPO?

You're either on Twitter or your not. The social network's high user attrition rate highlights a challenge that has dogged the online messaging site over the years and it could prove to be a key sticking point going into the company's IPO.

Facebook's tests its limits

Facebook's losing its grip on its goal to take over the internet. Woes around failed products, declining engagement and user numbers are placing the social network at risk of becoming irrelevant.