<http://schema.org/alternativeHeadline>
"The need for browser speed: IE9 bests everyone on Windows, Chrome dominates on the Mac"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/microsoft/2012/04/05/the-need-for-browser-speed-ie9-bests-everyone-on-windows-chrome-dominates-on-the-mac/>