SearchApp for Mac

From Objective Labs:

SearchApp is a Mac OS X freeware application that allows users to easily search any search engine they need without having to type the url into a browser. You merely type your search terms into the small window and hit search. I built it to compliment a great application written by ObDev called LaunchBar. SearchApp provids a quick way to launch a dialog that you can enter your search terms into. It's small, fast, and reliable. There is a dropdown that lists the possible search engines, and an editor to add your own. It come pre-configured for Google, Yahoo, eBay, Webster, UPS, and FedEx, but you can add as many as you want. Best of all, it's free.