Quix
Quix is a bookmarklet which opens a prompt, and then responds to commands. When you type whois, for instance, it’ll take you to a page with the whois of the domain you’re currently on. It can also understand more complex commands, like gs help, that will make it go to Google, searching the current site for the text “help”.
A simple command line interface for the web. Useful on the desktop, indispensable on the iPhone (and, I imagine, the iPad).
