<http://schema.org/topics>
"apps-and-software,Apps and Software,cause,fundraising,iContact,Mashable,mGive,non-profit,Pagelever,posterous,Sendgrid,Social Good,Uncategorized,World,wufoo"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2011/11/16/non-profit-tools/>