Now you can define your own shortcuts. Open Shortcuts are custom keywords that take you directly to a site, a search, or start a task right from the search box. In Unix speak: if the search box is the command-line of the web, shortcuts are aliases.
To use an Open Shortcut, you type ! (exclamation point) followed by the name of the shortcut in the Yahoo! Search box. For example, type: !ebay lamps. This takes you directly to www.ebay.com and searches for lamps.
You can create your own shortcuts to:
* Instantly navigate to any URL on the Internet
* Easily recall common searches on Yahoo!
* Quickly search favorite sites
* Jump start frequently used Internet applications
To create a navigational shortcut, use the keyword: !set with your shortcut name and destination URL.
!set shortcut_name URL
Try this
!set gops http://www.google.com/search?&q=%s+site%3Agooglesystem.blogspot.com
to set a shortcut for a search in this blog.
Some cool examples:
!mail sergey@google.com -- Compose a mail to Sergey Brin.
!wiki Sergey Brin -- Find information about Sergey Brin from Wikipedia.
!news Sergey Brin -- Search latest news about Sergey Brin.
The complete list of shortcuts.