Hospitality exchange services are social networking services used for accommodation of travellers, where hosts do not receive payments. The relationships on hospitality exchange services are shaped by altruism and are related to the cyber-utopianism on the Web in its beginnings and to utopia in general.

Warm Showers (WS) is a non-profit hospitality exchange service for people engaging in bicycle touring. The platform is a gift economy — hosts are not supposed to charge for lodging and are not bound. The legal form is a Colorado 501(c)(3) nonprofit organization headquartered in Boulder, Colorado, US.