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
Know Before You Go (US Customs)
Currency Exchange Rates
Cell Phone Rental