Custom search engines are one of the coolest features of any modern browser. With just a few keystrokes, you can search Wikipedia right from your address bar, do a custom Google search for Lifehacker articles, or even get driving directions to a specific location. We're wondering what your favourite custom searches are.
We've talked about custom address bar searches a few times before, but the more I dig around, the more cool searches I find. So we're putting the call out to you: what do you use this feature for?