Trustroots - Travellers community for sharing, hosting and getting people together.
BeWelcome - Open your door to the world!
How I Travel - Meet the world's most interesting travelers.
Airbnb for iPad - A new design experience for travelers and hosts
Couchsurfing - CouchSurfing is your ticket to explore the world -- from the road or from your own home.
Couchsurfing Hangouts - Meet nearby travelers and locals, no planning required