Alibaba Group Holding’s online marketplace Taobao has launched a new membership system that integrates various services from the firm’s other apps, aiming to create synergies and drive growth across the company’s expansive ecosystem.The loyalty programme, free of charge, offers users a range of benefits from Taobao, on-demand delivery service Ele.me, online travel agency Fliggy, grocery chain Freshippo, and online mapping and ride-hailing service Amap.It was open to about 1 billion users on...