topvoice.com
TopVoiceReach your most loyal fans directly. Contact a larger audience through the extensive. Personal networks of your Ambassadors. Enjoy a greater presence in social media as you reward. Ambassadors for their interactions with your brand. Privileged contact with their favourite brands. The pride of representing a brand that is close to their heart. Top ranking Ambassadors receive access to special. Promotions and prizes of their choice, and a place on the Wall of Fame. Because now it's supported by one.
http://www.topvoice.com/