Google API Maps

A mashup is a web application that combines data from more than one source into a single integrated tool. The term Mashup implies easy, fast integration, frequently done by access to open APIs and data sources to produce results data owners had no idea could be produced. We can implement a custom Realtor website design that will display all your Real Estate listings on a virtual map. 

An example is the use of cartographic data from Google Maps to add location information to real-estate data, thereby creating a new and distinct web service that was not originally provided by either source.