Mr Gates suggested that new techniques to identify senders, or the imposition of a small fee to send e-mails, might solve the problem.

ECONOMIST: Unwanted e-mails are no longer the menace they once were

Scientists have successfully developed a computer out of E. coli bacteria ( again), which has managed to solve the Burnt Pancake Problem -- at least in a limited form.

ENGADGET: Bacteria computer is good at math, even those pesky story problems