So no matter what your interest, there's bound to be a site addressing it. After choosing a destination, travelers can use the Net to find schedules and fares for airlines, hotels, and rental cars. Then, if they choose, they can either book online or reserve through a toll-free number. Leading booking sites such as Microsoft's Expedia and Preview Travel let travelers compare rates among hundreds of airlines, hotel chains, or car rental companies. However, sometimes it's sensible to go directly to a single supplier's site.
Travelers can sign up at airlines' Web sites.
Typically on a Tuesday or Wednesday, subscribers get an e-mail listing of bargain fares for the upcoming weekend. For people who have sufficient flexibility or who make travel plans at the last minute, the savings can be phenomenal. More sophisticated cyberfare programs have hit the Net recently, ones that allow users to specify cities they're interested in. Another travel booking site, ITN , offers a service called Fare Mail, where a traveler can specify what she's willing to pay for a flight. If the fare drops below that threshold, ITN will send an e-mail alert.