Search for Airport Hotels and Parking
An Excellent use of Google Maps and AJAX.
"The system allows you to select an airport and then enter the date of your travel and the type of hotel room you want. We then query a website called Holiday Extras, the UK’s leading supplier of Airport Hotels, for hotel availability. Each Hotel in our database contains a Lat/Long map position which we then overlay onto a map of the selected airport. You may then view the distance of each hotel with comparison to the price. The website makes use of AJAX to request booking forms and hotel information in order to speed up the functionality of the website."
Currently 191 hotels around 17 British airports are covered by the site, which also offers the customer the option of having door to door directions to the hotel, by simply feeding in their postcode.