• http://www.travelocity.com/
  • http://www.sierraclub.org/
  • http://www.lonelyplanet.com/
  • http://www.travel.com/
  • http://www.igougo.com/
  • http://www.fodors.com/
  • http://www.frommers.com/
  • http://dir.yahoo.com/recreation/travel/
  • http://www.nationalgeographic.com/traveler/
  • http://www.planetrider.com/
  • http://dmoz.org/recreation/travel/guides_and_directories/
  • http://travel.guardian.co.uk/