If you’re already using IE8 Beta 2, you’ve probably already seen the new search features available in IE8, perhaps you’ve even tried them out. Today I’d like to show you these features in greater detail and fill you in on some of the things we were thinking about when we created them.

• Search Suggestions present you with suggested queries as you type which help you compose and research your query.
• Visual Search Suggestions are suggestions which include an image and additional text. These can help you visualize what you are searching for and sometimes even get you the information you need without even leaving the search box.
• The QuickPick menu enables you to easily switch to your secondary, non-default, Search providers allowing you to search with the right provider every time.
• History results, directly accessible from the search box, show you pages you’ve already visited and save you a click or two. 
• Automatic Search Accelerators allow you to send selected text on a webpage to any of your search providers skipping the cumbersome copy and paste step.    
• Search query synchronization keeps the search box up to date with your most recent query term even if you search within a webpage instead of the search box. You can quickly edit or redirect your searches

For More Detailed Article: IE8 Blog