To help curb HIV in the developing world, doctors need to be able to quickly find out who needs to be treated without waiting weeks for samples to be taken to the nearest hospital. The mChip does that, using just your blood and the cloud.
Facebook's former head of marketing is taking her social media mojo and coordinating influential users to post about world issues. Your favorite follows just got a lot more earnest. But does caring on social media mean anything in the real world?