DuckDuckGo has the concept of predefined bangs, in which a search prepended by a bang—a !, followed by one or more letters or characters and a space—redirects a search to another site. Some other sites have adopted the concept. More information can be found at https://duckduckgo.com/bangs.
[EDIT] !g and !w will take you to Google and Wikipedia, respectively.
DuckDuckGo has the concept of predefined bangs, in which a search prepended by a bang—a !, followed by one or more letters or characters and a space—redirects a search to another site. Some other sites have adopted the concept. More information can be found at https://duckduckgo.com/bangs.
[EDIT] !g and !w will take you to Google and Wikipedia, respectively.