YubNub: A (social) command-line for the web
Here's a really interesting idea, courtesy of John Battelle's Searchblog. YubNub is a "command-line for the web" with a social-networking spin.
What to do an image search on Google for Anne Bancroft? Type in gim anne bancroft. How about viewing the Wikipedia entry for Bob Knight? Just type in wp bob knight.
Want to create your own commands? That's where the social-networking aspect comes into play. You can add your own syntax to YubNub.
Check it out: YubNub