CouchSurfing
- http://www.couchsurfing.com
- A volunteer-based worldwide network connecting travelers with members of local communities, who offer free accommodation and/or advice. Includes information about the organization, searchable listing of members, discussion groups, community wiki, and chat room.
Hospitality Club
- http://www.hospitalityclub.org
- Volunteer members offer free accommodation and travel help and leave comments in each others' profiles after the stay. Includes a forum, chat, and wiki travel guides.
MeetURplanet
- http://www.meeturplanet.com/
- Community offering free membership to travellers and hosts. Includes city information, personal experiences and gallery.
Pasporta Servo
- http://www.tejo.org/ps/
- For people speaking Esperanto. There is a membership fee for those who don't offer hospitality themselves.
Place2Stay
- http://www.place2stay.net
- Offers a worldwide network of private accommodations. Includes information about accommodations, a forum, FAQ and chat room.
Servas International
- http://www.servas.org/
- Oldest hospitality exchange organization. Website includes a newsletter, FAQ and list of countries. There is a membership fee and new members are interviewed by Servas representatives.