<http://schema.org/headline>
"Yammer Earns Its Keep for Microsoft, One Kahlua Sundae at a Time"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bloomberg.com/bw/articles/2013-02-20/yammer-earns-its-keep-for-microsoft-one-kahlua-sundae-at-a-time>