This page is an API Mash-up with Yahoo Maps!. The technology is commonly called AJAX for Asynchronous Javascript And XML. AJAX uses JavaScript to send and receive data between a web browser and a web server. An XMLHTTPRequest object is used to send data to a web server, and XML is the format for receiving server data.
Two REST Web services provided by Yahoo are used: geocode and local. More can be found in the GettingStartedGuide for AJAX. A proxy is used via the PHP Curl extension. This page was inspired by Dan Theurer's How to build a Maps Mash-up.