Google Suggest

http://www.google.com/webhp?complete=1

Personally I like this responsive behavior in a Web app. The next version of ASP.NET will have a feature called "partial postbacks" where the MSXML library is used to make calls to the server without refreshing the page. I've written binary behaviors in C++ to do stuff like this, but that's thick client. I've also manually written my own implementation of partial postbacks using MSXML, which is just javascript using callbacks. It's very slick.

This type of Web programming will hopefully raise the bar for industry.

I was reading this today and since it's "how" with respect to google suggest...

http://serversideguy.blogspot.com/2004/12/google-suggest-dissected.html