I found this search tool last week and though it would be of interest to those of you who are more visually oriented. It’s targeted toward elementary and middle school students, but should appeal to anyone who is a visual thinker.
The Boolify Project was designed to make it easier to for people to understand their web search by illustrating their search logic and by showing them how each change to their search instantly changes their results. Use the green pieces for your key words or phrases, then pull down the and/or/not pieces to link concepts. It’s a very nice way to design complex searches. There are also some great links on Boolean searching and web site evaluation in the Curriculum section.
Keep in mind that search results are presented through Google’s “Safe Search STRICT” technology, so if you’re searching for something that might be filtered, your results may not be complete.