<http://schema.org/about>
"We've been waiting for a fuel cell-powered laptop for a long time, and there are lots of prototypes out there. There's the UltraCell, that works with most any laptop, plus model-specific designs from a couple of big electronics names; both Panasonic"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/gadgets/toshibas-laptop-fuel-cell-patience-is-a-virtue.html>