Couchers.org - The new alternative to Couchsurfing. Non-profit. Community-focused. Well built.
Nightly - One part dating, one part social, one part nightlife
Trustroots - Travellers community for sharing, hosting and getting people together.
FairTrip - The sustainable travel app
Couchsurfing - CouchSurfing is your ticket to explore the world -- from the road or from your own home.
Atmospheir - Fastest way to discover, connect and chat with your contacts