LinksIn some countries, especially across Europe, there are ride organizations that pair hitchhikers with vehicles. In Germany, they are called Mitfahrzentrale, and are very common and popular.
Art of Travel's Hitchhiking Page
Hitchhiking Vietnam (PBS)
Kinga & Chopin Hitchhike the World
Digihitch
eRideShare
Hitchhikers.org RideShare
FreeWheelers RideShare (UK)
Bernd Wechner's Hitchhiking articles
Hitchhiking Wiki
Yahoo's Hitchhiking Links