Google's video sharing site YouTube is drawing the line on videos "'intended to incite violence or encourage dangerous, illegal activities." The changeover came after pressure from Sen. Joe Lieberman, the Independent from Connecticut who complained the site was being used by terrorists to incite terror attacks.
Scientists are using the sounds of nature to help check the health of ecosystems. By analyzing the sounds emanating from natural habitats, they can monitor biodiversity, animal behavior, human environmental impacts and the effects of climate change on nature.