“Smart Menu” is a cool new feature of the recently released Windows Live toolbar 3.0. Smart Menu enables immediate access to information about things you select on any Web page. Whenever you highlight text on a webpage that Smart Menu understands, a menu bar automatically displays near the highlighted text, providing you shortcuts to access maps, weather, stocks or web calling through Windows Live Messenger. And the results are shown in a preview window so you don’t need to leave what you are doing. For example, if you highlight an address on the webpage, Smart Menu will display a preview of the map in Windows Live Local.

Windows Live Search weblog