If you are using FireFox as your web browser and Google, you want to get Cooliris!
How to use Cooliris
- Mouse-over any link on Google search results and see the underlying content! Search within your search results without ever leaving the page or opening new windows or tabs!
- Mouse-over any thumbnail on Google image search result and see a zoomed version of the image and a full size version of it without having to leave the page!
- Highlight any word or phrase and right-click the selection. Choose your option from the drop-down menu and the results show up right there! You don’t have to leave the context of your work or open new windows/tabs! You can see results from Freedictionary, Wikipedia, Google Search and Google Images as of now.
Enjoy! 