BeWelcome - Open your door to the world!
Vacation Stress Relief - Vacation Stress Relief is an online solution that enables you to plan the perfect trip with great ease.
Trustroots - Travellers community for sharing, hosting and getting people together.
TravelPeri - Find top tourist attractions to explore, with travel times!
Hospitality Club - Free network of people around the world who offer free accommodation, advice and help when they are traveling - hospitality exchange. Free membership.
Wikivoyage - the free worldwide travel guide that anyone can edit.