Yahoo has had Search Shortcuts for a while now. Prefix your search by “!” and you could take a shortcut to your favorite Yahoo content.
* Navigation example, type: !my to navigate to “http://my.yahoo.com”
* Common Searches example, type: !wsf to search “weather san francisco” on Yahoo!
* Search example, type: !wiki rozier to search for “rozier” on Wikipedia
* Application example, type: !mail email@example.com to compose a Y! Mail to “firstname.lastname@example.org”