There's a LOT of funny data out there, but only Demetri Martin's is supposed to be funny. I love his flip chart routine, a sort of fractured fairy tales version of scientific illustrations. His deadpan delivery reminds my brother of Zach Galifianakis and my father of Steven Wright.
Martin's got a new show called "Important Things" premiering on Comedy Central this Wednesday night. I plan on checking it out, because laughter really IS the best medicine.