Has the disruptive new media gone mainstream? CEO of Ask.com, Doug Leeds, talks to Rory Cellan-Jones about his company's recent purchase of Ask.fm, a social network with a younger demographic and a notorious reputation. Also, as BuzzFeed is valued at $850m - more than the Washington Post- BuzzFeed's Vice President of Europe Will Hayward talks about why the company's use of 'native advertising' is so attractive to readers. We check in with Delhi and Shanghai about how mobile phone maker Samsung is facing competition from in-country competitors. And the most powerful commercial satellite ever - one that can see a resolution of up to 31cm from space lifts off. With Carolyn Rice, Mark Ward, and Emma Mulqueeny.