| place2stay.net | Place2Stay |
| meeturplanet.com | MeetURplanet |
| hospex.net | Hospitality Exchange |
| globalfreeloaders.com | Globalfreeloaders.com - The Worldwide Free Accommodation Network |
| couchexchange.org | Artist Couch Exchange |
| couchsurfing.org | CouchSurfing - Participate in Creating a Better World, One Couch At A Time |
| tejo.org | Pasporta Servo: International Hospitality Service Using Esperanto |
| lghei.org | Lesbian & Gay Hospitality Exchange International |
| ipa-usa.org | International Police Association |
| hospitalityclub.org | Hospitality Club |
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