China's biggest social media company is developing new apps which use artificial intelligence.
Mars, Lidl and Adidas are among companies to act after inappropriate content found next to their ads.
Parents should check net-connected toys and gadgets are safe to give to children, warns data watchdog.
Employees disrupt one of the retailer's busiest shopping days in disputes over pay and conditions.
Michael Gove questions the role of "raw and authentic" Twitter voices in debates on animal welfare.