This week's website - HostelZ.com. This lists 46,000 hostels in 7,000 cities. It's the Kayak of Hostels.
This week's App - All Set Now. This is dining for people who don't have time to eat out. It's partnered with 200 restaurants in San Francisco and New York. You order and pay for your meal and then tell them when you're coming. They'll seat you and bring out your meal right away. It's available on Android/iOS.