The buzz about Web Services gets louder every day. Is it the promise of perfect interoperability, lower costs, and increased efficiency? In this article, an effort has taken to show you how to create your own "Google search engine" with Web Services provided by Google. First, you need to create a Google account here (all you need is an email address).
In order to invoke the Web Services we also need the toolkit. In this article we will use PHP NuSoap classes; free download here. I strongly recommend seeing the FAQ page to know all about Googles cutting edge technology available to the public. If you are interested in the advanced theory of the search engine, see this publication from Stanford University.