Excellent for finding obscure facts and phrases. It is considered to be one of the most powerful search engines available. Has good field-search options that allow you to limit your search results by specific criteria. It is also particularly good on identifying current news articles. You can also hone your search by doing a second search of just the results returned by your original query.
Interface is easy to master.
Good for locating multimedia files and to locate Web sites by geography. You can choose from among dozens of search engines. Review the first couple of pages of results and pay attention to the sites that contain the kind of information you want and don't want. Use this information revise your query. Before launching your search, think about what unique words or phrases are likely to appear on the pages you want to find.