1. CouchSurfing

http://www.couchsurfing.com

CouchSurfing is a worldwide network for making connections between travelers and the local communities they visit.

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 2. Travel Buddies

http://www.travbuddy.com

Find travel buddies going to the same places as you are
Share experiences and unlimited photos in a free travel blog
Plan your next trip with unbiased travel tips and reviews

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3. Hospitality Club

http://www.joshspear.com/item/the-hospitality-club/

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4. The Hospitality Club

http://www.hospitalityclub.org/

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