The British grocery chain is offering a new kind of rewards to customers who are social network savvy.

Dory Carr-Harris Dory Carr-Harris on July 11, 2012.

Customers who want to take advantage of the deal have to register for the Share & Earn Facebook app that can be found via the brand’s Facebook page.

Facebook users can then post products they “like” to their Facebook wall. If their friends buy the products after clicking through the Facebook post, both the sharer and the purchaser will earn Clubcard points for the purchase. Brand Republic