Boolean Searches Boolean Searches rely on three words called operators. If you put the operator AND between the two key words breast AND cancer, what you will get back from the search are Web sites with both terms, breast and cancer. If you put the operator OR between the two key words breast OR cancer, what you will get back from the search are Web sites with breast or cancer or with both breast and cancer. If you put the operator NOT between the key words breast cancer NOT men , what you will get back from the search are Web sites with breast cancer but not men. Not all of the search engines use the same operators.
Many search engines have a built-in help section.
As mentioned earlier, AltaVista is also a directory. The directory will direct you to a list of Websites dealing with the topic you wish to find. In our case, it is breast cancer.