My understanding of XML is “Leisure Links” is a Marriott term for weekend discounts given to employees of various large corporations for their personal leisure travel. It goes without saying that these companies do a lot of business with Marriott. When it comes to showing ID it would be for IBM or Pfizer or whatever. My company intranet site has a link to the Marriott leisure link page and populates the XML code when I click through to make a reservation. No idea how Marriott knows what company the employee works for when booking the rate… I guess they probably do not know.