Links about hitchhiking

Digihitch

Huge site about hitchhiking

Wikipedia / Hitchhiking ´

Tank und Rast

Hitchhiker's best friend even if the feeling is not always mutual. The link brings you to a clear map of service station locations in Germany. (English language)

The Hospitality Club

Who wants to have a friend waiting for you in a stranger city? Everybody who enjoys hospitality should be member of the Hospitality Club. It's an organization where the members help each other by offering free accommodation in their own homes. There's no obligation to return for anything.
It's a great idea.