Search using ‘cloud tags’ to include/exclude key words. Or use mini search engines (‘zoomies’) to home in on types of site such as blogs, news, statistics and resources.
See the tutorial at: http://deeperweb.com/help/tutorial-howto.php
Interactive tool which presents results as a mind map. Each word opens a dialogue box with key facts, websites, images, videos and quizzes which can be pinned to the map and even saved to a journal (once you are logged in). Great for research, brainstorming and planning.