I am looking to create a web page or script where I enter one string and it searches Google for that string across 300+ different web sites.

For example, I enter the word "boxing" and it searches a pre-configured list of 300 web sites for the word "boxing" using Google's site: operator.

The web page or script would be only for my use. I could distribute it freely for other people to us, but my copy would only need to work for me.

Anyone have suggestions on how to build this beast? Right now I'm stuck way back at the "How can I have more than one onClick on a submit action in an HTML form?