<http://schema.org/about>
"Ready to ditch all those passwords? It won't be long before they'll be replaced with cool devices like those for fingerprint or eye scanning."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/gadgets-electronics/photos/5-biometric-devices-for-the-average-joe/scanadu-scout>