 
NB: the following websites are just a sample of the many websites related to travel and travel-planning. There are many more available that you may find at least as useful as these, or more so. Their inclusion on this list (or the exclusion of others) does not represent any type of endorsement by the instructor of the course, Luther College, or any other individual or organization.
Passports, Consular Information Sheets, Travel Warnings,  Travel Tips, Safety
  http://travel.state.gov/
    
  Know Before You Go (US  Customs)
  http://www.cbp.gov/xp/cgov/travel/vacation/kbyg/
    
  Tourism Information (Government Offices)
  www.towd.com
  
 
  Tourism Information (Publication-related Travel Sites)
  www.fodors.com 
  www.frommers.com 
  www.lonelyplanet.com
  www.ricksteves.com 
  
    
  Airline Seat Selection 
http://www.seatguru.com/
Airport Codes
  http://www.orbitz.com/shared/pagedef/content/air/airportCodes.jsp?popupsDisabled=false
    
  Airports
  www.quickaid.com
    
  Flight Conditions
  www.fly.faa.gov
    
  Underground/Subway
  http://www.amadeus.net/home/new/subwaymaps/en/
    
    Travel Arrangements
  www.expedia.com
  www.travelocity.com
  us.venere.com
  www.tripadvisor.com
      www.hotels.com 
  www.orbitz.com
    
  Health
  www.cdc.gov/travel
  http://www.lonelyplanet.com/health/
      
      Travel Insurance
  www.insuremytrip.com
    
  Currency Exchange Rates
  www.x-rates.com
  www.xe.com
      
       
  ATM Locator
  http://dir.yahoo.com/Business_and_Economy/Finance_and_Investment/Banking/Automated_Teller_Machines__ATMs_/ATM_Locators/
    
  
  Cell Phone Rental
  www.travelcell.com
  
 
      
 Time/Date
  www.timeanddate.com/worldclock
    
  Weather
  www.worldclimate.com
  www.accuweather.com
  
  Packing Tips
  http://dir.yahoo.com/Recreation/Travel/Travel_Tips_and_Tools/Packing/
  http://www.verber.com/mark/travel/packing.html
      
       Metric Conversions
  www.sciencemadesimple.com/conversion.html