This is a nice explanation. Well done. Boolean Search Logic Explained “What is Boolean searching? – Why is Boolean logic useful? – How to use Boolean search queries – Where you can use Boolean searches” (tags: searching boolean expressions)
Also tagged booleanKaren does a great job in this chapter building “The Researcher’s Toolkit.” Here are some of the links from Chapter 5. To view the latest version of these use http://www.delicious.com/ernestackermann/chapter5snr5 NOAA’s National Weather Service This U.S. National Oceanic and Atmospheric Administration site provides up-to-date weather forecasts for all 50 states. You can search the area […]
Also tagged chapter 5, researcher's toolkit