Comment Orbitz (Score 2, Interesting) 524
Orbitz is owned by Cendant, not the airlines. It was bought out recently. If you RTFT (read the fucking terms), you'll see it refers to DEEP LINKING. You can still link to http://www.orbitz.com, but what you cannot due is link to a set of search results within the engine.
This is not possible anyways, because the results from a search within Orbitz are linked to your 'session ID'. This session expires after 15 minutes of inactivity. So if you gave someone the URL, all that they would get would be a search box, anyways. This is mainly to prevent robots from crawling the site (and disregarding the robots.txt file).
So it's really irrelevant. Orbitz can form special sticky URLs that link to a search result's CURRENT cache if they want, and they send these out in spam^H^H^H^Hmarketing e-mails.