|Menu||All about ku7|
Individual airlines, hotels, bed and breakfasts, cruise lines, automobile rental companies, and other travel-related service providers often maintain their own web sites providing retail sales. Many with complex offerings include some sort of search engine technology to look for bookings within a certain timeframe, service class, geographic location, or price range.
The average consumer visits 3.6 sites when shopping for an airline ticket online, according to PhoCusWright, a Sherman, CT-based travel technology firm. Yahoo claims 76% of all online travel purchases are preceded by some sort of search function, according to Malcolmson, director of product development for Yahoo Travel. The 2004 Travel Consumer Survey published Jupiter Research noted that "nearly two in five online travel consumers say they believe that no one site has the lowest rates or fares." Thus a niche was created for aggregate travel search which seek to find the lowest rates from multiple travel sites, obviating the need for consumers to cross-shop from site to site.
Metasearch engines are so named conduct searches across multiple independent search engines. Metasearch engines often make use of "screen scraping" to get live availability of flights. Screen scraping is a way of crawling through the airline websites, getting content from those sites by extracting data from the same human-readable HTML feed (rather than a Semantic Web or database feed designed to be machine-readable). Metasearch engines usually process incoming data to eliminate duplicate entries, but may not expose "advanced search" options in the underlying databases (because not all databases support the same options).