Facebook takes on food delivery, challenges Uber and others

NEW YORK — Several online services already offer food delivery, but that doesn't mean Facebook won't jump on board anyway.The social-media giant says ordering food for takeout or delivery is complicated. It promises to help save time by bringing existing food-delivery services into its app and partnering with some restaurants directly.Of course, using Facebook to order food might prompt users to spend more time perusing their news feeds — and seeing ads.U.S. Facebook users can order