'Path', and 'Customize Google'

Path

Path is another re-invention of Windows Run menu with several extra features added to it, such as desktop and start menus, and user-defined tools. This application uses very little system resources and minimizes to the system tray. Replace the standard Windows "Run" menu, with a more efficient one and access all areas of your system conveniently.

http://www.xtort.net/xtort-software/path/

Customize Google

CustomizeGoogle is a Firefox extension that enhances Google search results by adding extra information (like links to Yahoo, Ask.com, MSN etc) and removing unwanted information (like ads and spam).

http://www.customizegoogle.com/