Alfred

From RaySoft

Alfred is an application launcher and productivity application for Mac OS X. Alfred is free, though an optional paid upgrade (Powerpack) is available.[1]

Using a keyboard shortcut chosen by the user, Alfred provides a very quick way to find and launch applications and files on the Mac or to search the web both with predefined keywords for the most used sites such as Amazon.com, IMDB, Wikipedia and many others but also with the ability to add users' custom searches for the sites most applicable to them. In its free version it also serves as a calculator, spell-checker and a convenient interface for controlling the Mac with system commands.[1]

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