AirWander - Add multi-day stopovers to save on flights
HERE WeGo - HERE WeGo - Maps - Routes - Directions - All ways from A to B in one
Flymble LIVE - Book a flight for 1/10 of the cost upfront.
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Lonely Planet - travel guide book publisher
FlyGRN - Flight search engine that offsets carbon emissions for free