<http://schema.org/description>
"One of the pages on Twitter most of us don't see often is its homepage. It's gone through a few revisions over the years ranging from a busy mashup of top tweets and popular users to ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/twitter/2011/12/09/twitters-new-homepage-sign-up-sign-in-or-get-the-f-out/>