<http://schema.org/topics>
"Apple,Cross-Platform Apps Series,csstidy,Dev &amp; Design,features,kate,Linux,mac,Mashable,mySQL Workbench,smartgit,snippets,sublime text,toucan,transmit,web development,Windows"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2011/03/07/web-developer-apps/>