<http://schema.org/description>
"How do you monitor on Twitter who stopped following you and started to follow a competitor? What would be the fastest way to compare how many Twitter followers you share with another ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2011/02/21/socialgrapple-gives-you-insights-on-your-twitter-competition/untitled-18/>