Kiwi.com - Find and book the best low-cost flights all around the world
Discotech - Opentable for nightlife. Tickets, guest lists, and VIP.
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Tablelist - OpenTable for nightlife
JetRadar - Compare flights from hundreds of airlines & travel agencies
Eaze - Uber for medical marijuana