BeWelcome - Open your door to the world!
Travelisty - Product Hunt for travel stories
Trustroots - Travellers community for sharing, hosting and getting people together.
Couchsurfing - CouchSurfing is your ticket to explore the world -- from the road or from your own home.
Worldpackers - Exchange your skills for accommodation
relaxed.com - its a travel website community and app for travel enthusiasts. It includes couchsurfing, Housesitting, Vacation Rentals, Work Abroad and many more travel modalities. it has travel forums, groups, news feed, galleries and travel experiences offers