How many times a day do you check for updates to e-mail, weather reports, sports scores, stock quotes, auction items email and so on? Until now this was a manual process, where you had to repeatedly visit sites to check for updates or new information.

Using Web Slices, you can keep up with frequently updated sites directly from the new Favorites Bar. If a Web Slice is available on a page, a green Web Slices icon will appear in the upper-right hand corner of the browser. Click on this icon to easily subscribe and add the Web Slices to the Favorites Bar so you can keep track of that "slice" of the web.

http://www.microsoft.com/windows/internet-explorer/beta/features/web-slices.aspx