Facebook Deals gives local shopping discounts
Facebook is launching a service that allows British users to earn discounts from high street businesses.
People who visit participating shops can log in using from their mobile phones to receive rewards.
Companies can use Facebook Deals as a virtual loyalty card or coupon system.
The service ties into Facebook Places, an add-on for mobile phones that launched in 2010 as a way for users to share their location with friends.
Rory Cellan-Jones reports.