For those who don’t have a copy of Google Hacks there is a nifty page that lists plenty of nifty things you can do with google searches.
You can specify most of the Advanced Search page options in a regular search box query by using advanced operators, i.e., query words that have special meaning to Google. Since the advanced operators are convenient for searching, Google Guide calls them “search operators.” Most users find that making use of the Advanced Search page, instead of using search operators directly, fulfills their specialized search needs. Search operators tend to be used by people who prefer to type commands rather than filling in forms.
Found on Boing Boing.