Google recently tested a new interface for search results. The test didn't include any new feature and Google even loaded the standard search results page to display the results. An important notable change is the new format was that Google didn't load a new page to display the results and browsers didn't send proper referrals when clicking on search results.
WordPress.com search engine launched before a year, after the launch of the search engine the searches made on Wordpress search engine is innumber millions. Recently Wordpress announced an a significant update: instant findability. This feature allows searcher to view all latest related post with the feature "most recent results" available on the search page.
It's simple with the new "AwesomeBar" this is a completely revamped URL bar in firefox 3. it lets you use the URL field of your browser to do a keyword search of your history and bookmarks. No longer do you have to know the domain of the page you're looking for - the AwesomeBar will match what you're typing (even multiple words!) against the URLs, page titles, and tags in your bookmarks and history, returning results sorted by "frecency" (an algorithm combining frequency + recency).