<http://schema.org/alternativeHeadline>
"Google launches Chrome app for its Keep service: Manage your notes, to-do lists, and photos even when offline"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2013/05/02/google-launches-chrome-app-version-of-its-keep-note-taking-service/>