美國自助參考資源整理 便宜機票與旅社整理 http://www.skybus.com/ http://www.pricegrabber.com/home_travel.php/ http://www.whichbudget.com/ http://www.kayak.com/ http://www.cheapflights.com/ http://www.priceline.com/ http://www.travelocity.com/ http://farechase.yahoo.com Cheap flights Booking http://www.bookingbuddy.com/ Expedia http://www.expedia.com/ 便宜宿舍(青年旅社) http://www.choicehotels.com/ http://www.hostelworld.com/index.php http://www.hostels.com/ http://www.hostelz.com/ http://www.hihostels.com/ Hostelling International http://www.hihostels.com/ 銀行 https://www.bankofamerica.com/ 火車 http://www.amtrak.com/ 便宜劇團票 http://us.lastminute.com/ 國家公園 America National Park Service http://www.nps.gov/ National Parks of the American Southwest http://www.americansouthwest.net/index.shtml
