Yahoo! Launch Instant Search Beta

A new beta search tool has been posted up on Yahoo’s Next website, the showcase site for their new products.
Instant Search is an AJAX-based interface for Yahoo search that lets you do a search and go straight to your destination without ever having to see a results page - as you type in the search field, popular searches and shortcuts to Yahoo’s services are grabbed dynamically and presented in a pop-up bubble. For instance, typing “mail” brings up the shortcut to Yahoo Mail, which lets you visit with one click.
The service takes a dig at Google’s famous “I’m Feeling Lucky” tool that sends you to the top result without viewing a search results page; the description for Instant Search asks “Why feel lucky when you can be right? With Instant Search, find the information you want — without even hitting the search button.”.
The dynamic retrieval of results is also very similar to Google’s Suggest tool, only with Instant Search you are taken directly to the destination page while Suggest just helps you as create your search query.
Related:
Google Suggest
Asynchronous Javascript + XML (AJAX)