Walmart to test food delivery with Uber

US supermarket giant Walmart is to announce a new partnership with Uber and Lyft as it seeks to take on online retailer Amazon.

Flat lens promises revolution in optics

A flat lens made of paint whitener on a sliver of glass could revolutionise optics, its US inventors say.

Gawker 'confident' about legal appeal

The boss of Gawker Media says he is "confident" of succeeding in an appeal in a costly legal case involving wrestler Hulk Hogan.

VIDEO: Reddit boss: 'An exciting time for us'

Co-founder and chief executive of Reddit, Steve Huffman, discusses his plans to evolve the company that aspires to be "the front page of the internet".

Saudi wealth fund puts $3.5bn into Uber

Ride-hailing service Uber attracts a $3.5bn (£2.43bn) investment from Saudi Arabia's Public Investment Fund to help it expand in the Middle East.

Reddit plans to host videos on its site

Co-founder and chief executive of Reddit, Steve Huffman, discusses his plans to evolve the company that aspires to be "the front page of the internet".

Spy bill 'could meet privacy concerns'

Powers that allow UK security services to collect large volumes of personal data are not "inherently incompatible" with privacy laws, say MPs and peers.