BillMorrow - Thanks for those two links, I didn't know about MyLeisureTrip.com and I will add it to the list.

With regards to the other link for Hilton Wireless: that link is a sublink to a place/location within the website. It is not a registered domain name like all the others. If the address was www.hiltonwireless.com (or some other similiar derivative), I would add it, but alas, it is not. The address that you gave is: http://www.hilton.com/en/hi/promotions/wireless/ and unfortunately, that doesn't meet the criteria of being a unique domain name.