| http://www.w3.org/ns/prov#value | - usive content, invitations to special events and other incentives directly to their customers.Read more >> 5 November 2014 ??? By Rian Boden ??? Last updated 13 November 2014, 17:11 Tip.ly uses face recognition to let users leave tips with their phone Startup Tip.ly has launched Face Tips, a service that lets users tip service workers by simply taking a photo of the server's face with a mobile pho
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