<http://schema.org/description>
"The Google Apps Marketplace has enabled contextual gadgets for third party developers, and a number of companies trying to own a contextual layer for business users of Gmail have built ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2010/05/18/google-apps-marketplace-enables-contextual-gadgets-the-battle-for-gmail-begins/gist_gmail_gadget/>