Wow amazing and wonderfull, Yahoo release they search tool, yes Yahoo! Shortcut this wonderfull, with this shortcut we can maintenance add/delete our own shortcut or use standar Yahoo! shortcut.
Just type in keyword form !mail firstname.lastname@example.org and and go, you will directly to you Yahoo! mail and ready to compose message.
Just type in keyword form !amazon your seach than go! you will redirect to Amazon and get the result. :D
And many more….