In the pretty-old-but-new-to-me department: the Sherlock URL schema. (I'm trying to do some benign Googlebombing here, because Apple has buried this info in a section on using AppleScript with Safari). Here's a quick example: sherlock://com.apple.dictionary?query=foobar. Putting aside the question of whether Sherlock has been made obsolete by web services and competing tools, this is a neat interface. Good for LaunchBar search templates or Mozilla custom keyword searches or even additions to my old lazysearch proxy script. (Thanks to Joe on the launchbar-talk list for the tip!)