GetYourGuide - Get tickets to the most popular attractions while travelling
Couchers.org - The new alternative to Couchsurfing. Non-profit. Community-focused. Well built.
Airbnb Experiences - Airbnb expands beyond rentals — now hosting Experiences
Couchsurfing - CouchSurfing is your ticket to explore the world -- from the road or from your own home.
Viator - Tours, things to do, sightseeing tours, day trips and more from Viator.
Trustroots - Travellers community for sharing, hosting and getting people together.