Mercurius for Windows

This simple utility does more than access several search engines; it lets you quickly refine your search. Mercurius analyzes search results and finds out which words and phrases are used in the same context as yours. Then you can search again, adding these words and repeating the process until you find what you're looking for.

The interface leaves much to be desired. It would gain from being more integrated into Internet Explorer. The trial version doesn't allow you to fully value the utility because it disables crucial options such as search depth and the number of pages to analyze. Mercurius may help students and Web researchers the most.