For hotel fanciers, Luxurylink.com, offers discounts on high-end hotels and villas through online auctions and deals. Just last month the site was auctioning off a five-night package at La Samanna on St. Martin in the Caribbean that included a deluxe ocean-view room with a private terrace, airport transfers, a bottle of rum upon arrival, two 45-minute massages and a one-day car rental with a minimum starting bid of $2,475. The package normally costs $6,171.

VACATION RENTALS

As hotel prices rise, vacation rentals can be the better deal. HomeAway.com offers more than 290,000 listings in 145 countries, including rentals by owners that cut out the middleman.

Airbnb.com connects travelers with locals who are offering a place to stay, whether it is a couch, a private apartment or a castle. It currently has about 100,000 listings in 19,000 cities and towns in 192 countries, and charges booking fees from 6 to 12 percent. Wimdu.com offers a similar service focused mostly on places in Europe with 35,000 listings across 100 countries. Do as much due diligence as you can when using such sites; some hosts have been known to cancel confirmed reservations at the last minute.

For luxury seekers, Jetsetter.com/homes, a members-only site, offers discounts of up to 50 percent on 5 to 10 carefully selected vacation rentals. Membership is free and by invitation only. You can also request a free membership on Jetsetter.com.

EVERYTHING ELSE

Tired of sifting through daily-deal or group-shopping sites like Groupon and LivingSocial for local bargains? YipIt.com, collects those deals from 787 services in 118 North American cities. Travelers who sign up with an e-mail can filter results by checking categories like wine tasting, museum, golf or other activities. A recent search for restaurant and spa deals in New York turned up a $60 three-course dinner for two with wine (worth $136) at Tenpenny, the Gotham Hotel’s restaurant, and a $199 Moroccan Spa treatment at the Trump SoHo, worth $339. Pay close attention to expiration dates to be sure the deals will be good for your travel plans.

Autoslash.com searches the Web for discount coupons on car rentals and applies them after you book. It then continually checks for lower rates and coupons until your trip date and automatically applies any discounts it finds.

Cayole.com lets you search cruises by price, destination, room type or cruise line, then offers price predictions to give cruisers an idea of whether they should buy now or wait for a possible price drop. For example, by clicking “get more details” for a five-night Western Mediterranean cruise in September, the site recommended that travelers booking balcony cabins buy “as soon as possible, because prices are likely to increase.” For interior ocean-view rooms or suites it suggested waiting.

If you’re willing to swap places with a stranger, list your home and find travelers willing to trade on Homeexchange.com, which facilitates about 60,000 swaps a year. Recent listings included a two-bedroom apartment on Lake Como in Italy and a six-bedroom oceanfront lodge in Cape Town with a resident game ranger. Members pay $119.40 to list their home for a year or $47.85 for three months.