The first is Stop the Hunger - world hunger statistics updated in real time. This is related to Worldometers, which is already on the list; Stop the Hunger points out that as of 7:45 p.m. PDT, well over 25,000 persons have died of hunger today. You don't have to wait long to see the number grow.
Thanks to Lucie Lecomte for sending the link to the other resource, Quandl, which offers nation-by-nation statistics on economics, housing, society, health, education, energy, and demography. (If you don't see their links when you visit, click on "More Subjects.")
This is really a remarkable site; check Haiti, for example, and you'll learn that 17% of Haitians in 2008, before the quake, had improved sanitation facilities, down from 26% in 2003. Click on the "vs World" link, and you'll see how that compares with the rest of the world, nation by nation.