Google Now is an incredibly convenient service, and many have come to rely on it pretty heavily. Currently, though, there seems to be an issue with the service, rendering it useless to affected users. Thankfully, though, a temporary fix is available.
Google Now Stories May 6
Google Now Stories March 9
Google Now Stories February 8
Google Now Stories December 6, 2016
Everyone can use an Echo Dot: Just $50!
Google Now Stories October 18, 2016