Make Google Better with Customize Google for Firefox

The most useful Firefox extension for Google is Customize Google. It lets you remove websites from Google Search results, search other places from Google, disables click tracking if you have privacy concerns and much more.

Microsoft World Wide Telescope — Video Demo

WorldWide Telescope is an observatory on your desktop, allowing you to see the sky in a way you have never seen before; individual exploration, multi-wavelength views, stars and planets within context to each other.