Talkable — Customizable Refer a Friend Programs

Talkable enables your Magento store to attract new customers by offering them special deals in exchange for sharing with their friends.

This extension provides links for them to share their purchase on Facebook, Twitter, and Email and encourages them to bring in new customers for you.

Using Talkable, you help your customers drive more referral sales per dollar than traditional marketing and advertising.

See more at Talkable.com