Accommodation

Airport Hotel Guide Hotel Reservation
B & B's Worldwide B & B International B & B - The Register
Hostelling International
KOA Kampgrounds ReserveAmerica

Maps

Mapblast (worldwide) Mapquest (us & ca)
Falk Maps Stadtplandienst / City Maps

Miscellaneous

(Train, Bus, Car ... etc)

AAA ADAC
Amtrak DB Fahrplan Auskunft
Greyhound
Fahrpläne / Schedules