Probably the quickest, most efficient search engine on the web allowing you to find what you need with an uncluttered; easy to use and understand interface which is also child friendly. Although as with any search engine, and the nature of the Internet, it is able to find mature content which is highly unstable for minors or those whom are easily offended. The only restriction for excluding mature content is in image search; via 'Safe Search' which defaults at a moderate setting. However this can easily be overridden via the preferances panel. Preferences for Google search are stored as a cookie on your computer.