AIRFARES

Time-Pressed Traveler

Kayak.com - fetches the best fares on the web

Best-Deal Traveler

Farecast.com predicts whether fares on major domestic routes will go up or down.

Airfare Watchdog posts these travel bargains

International Traveler

cFares.com aggregates travel fares sold through other providers

LODGING

Time-Pressed Traveler

TripAdvisor is the most comprehensive and easy-to-use hotel review site

Best-Deal Traveler

Priceline.com offers the best bargains for luxury hotel lodging

Bedandbreakfast.com It lists extensive details on even the tiniest inns

HomeAway.com The best selection of rental lodgings

International Traveler

Villas International you can find cottages and apartments

LateRooms.com emphasizes last-minute bargains at international hotels

CAR RENTALS

Time-Pressed Traveler

Orbitz aggregates rental-car rates from seven of the most affordable car rental companies in the country

Best-Deal Traveler

Hotwire consistently offers lower rates because it doesn’t disclose which rental company you're working with until after you've paid

International Traveler

Auto Europe is a rental-car rate wholesaler that specializes in pre-paid international rentals

VACATION PACKAGES

CRUISES

CruiseMates.com explains the art of booking a cruise

CruiseCompete than 300 travel agents vie to give you the lowest prices for dates

Quick Travel

Lastminute.com offers the best prices for booking an entire vacation as late as three hours before departure

Luxury Link offers discounted packages for high-end travel

Theme Vacations

US Parks explore a national park

iExplore.com The site offers hiking and biking trips, as well as multi-sport tours.

EnvironmentallyFriendlyHotels green travel

RESOURCES & TRAVEL ADVICE

Airport parking

AirportDiscountParking.com

Currency conversion

XE.com

Eurail

RailEurope

Flight information

AvoidDelays.com

Frequent flier miles

WebFlyer

Points.com

Packing

OneBag.com

Seating

SeatGuru.com

Travel insurance

Travel Guard

Advice

Budgettravel.com (Vacation Rental Handbook)

SlowEurope.com

TripAdvisor.com
(Check local forums and FlipKey.com’s vacation rentals reviews)

VRWD.com

Vacation-rental-info.com

Professionally managed vacation rentals

ClearStay.com

DiscoverVacationHomes.com

Pickpackgo.com

ResortQuest.com

VacationRoost.com

Zonder.com

Vacation rentals by owner

Ownerdirect.com

Rentalo.com

Roomorama.com

Vacationrentals.com

Both owner and managed vacation rentals

HomeAway.com

Otalo.com

Vacationrentals.com

Timeshare Rentals

Evrentals.com

Redweek.com

airasia.com

airpolonia.com

airparadise.co.id

Airportdiscountparking.com

airtreks.com

Alpharooms.com

Autoerope.com

Biddingfortravel.com

Budgettravel.com

caribbeanvilla.com

Cruisecompete.com

cybercafes.com

dealmine.com

dltravelLLC.com/d

Easyclicktravel.com

Economytravel.com

eldertreks.com

Firstclassflyer.com

Farepath.com

festivals.com

flypacificblue.com

Forecast.com

gogapyear.com

gosim.com

gulftraveller.com

Gusto.com

Holidaytruth.com

Homeaway.com

jetstar.com.au

lastminute.com

Laterooms.com

lionair.co.id

Lotsofplaces.com

Lowestraveler.com

Luxurylink.com

menajet.com

mylifemycard.com/goingonce

Nycvisit.com

Realtravel.com

ResortVacationsToGo.com

Seatguru.com

Seyahat.com

Site59.com

skyeurope.com

Smartfares.com

starclippers.com

studyabroad.com

ubwaynavigator.com

surflinetravel.com

tigerairways.com

TourVacationsToGo.com

Travel-to-italy.com

travelocity.com

Travelodge.co.uk

tripadvisor.com

Turkishportal.com

Wired-destinations.com

visitlondon.com

cityoflondon.gov.uk

visitbritain.com/us

oxford.gov.uk/tourism

visitlincolnshire.com

travelwales.org

visitliverpool.com

liverpool08.com

visitbritain.com/taste

nationalrail.co.uk

britrail.com

(coupon code USASF gets free shipping)