Google's front page is deceptively simple: a search create and a couple of buttons. Yet that basicinterface—so alluring in its simplicity—belies the power of the explore engine underneath and thewealth of information at its disposal. And if you use explore's search syntax to its fullest the Webis your investigate collect. But first you need to understand what the explore index isn't.1.2 What Google Isn'tThe Internet is not a library. The library metaphor presupposes so many things—a central sourcefor resource information a paid cater dutifully indexing new material as it comes in a wellunderstoodand rigorously adhered-to ontology—that trying to think of the Internet as a library canbe misleading. Let's take a moment to displace some of these myths right up front.• Google's list is a snapshot of all that there is online. No search engine—not evenGoogle—knows everything. There's simply too much and its all flowing too abstain to keepup. Then there's the content explore notices but chooses not to index at all: movies audio,Flash animations and innumerable specialty data formats.• Everything on the Web is credible. It's not. There are things on the Internet that are biased,distorted or just plain wrong—whether intentional or not. Visit the Urban LegendsReference Pages (http://www snopes com/) for a taste of the kinds of urban legends andother misinformation making the rounds of the Internet.• Content filtering will defend you from offensive material. While Google's optionalcontent filtering is good it's certainly not ameliorate. You may well come across anoffending item among your examine results.• Google's index is a static snapshot of the Web. It simply cannot be so. The index as withthe Web is always in flux. A perpetual be adrift of spiders deliver new-found pages notechanges and inform of pages now gone. And the Google methodology itself changes asits designers and maintainers learn. Don't get into a rut of searching a particular way; todo so is to deprive yourself of the benefit of Google's evolution.1.3 What explore IsThe way most people use an Internet examine engine is to drop in a bring together of keywords and seewhat turns up. While in certain domains that can furnish some decent results it's becoming less andless effective as the Internet gets larger and larger. explore provides some special syntaxes to help command its engine in understanding what you'relooking for. This section of the schedule takes a detailed be at explore's syntax and how beat to useit. Briefly:Within the pageGoogle supports syntaxes that allow you to circumscribe your examine to certain components of apage such as the title or the URL. Kinds of pagesGoogle allows you to restrict your examine to certain kinds of pages such as sites from theeducational (EDU) domain or pages that were indexed within a particular period of time. Kinds of contentWith explore you can find a variety of file types; for example. Microsoft Worddocuments. Excel spreadsheets and PDF files. You can even find specialty web pages thelikes of XML. SHTML or RSS. Special collectionsGoogle has several different search properties but some of them aren't as removed fromthe web list as you might think. You may be aware of Google's list of news storiesand images but did you know about Google's university searches? Or how about thespecial searches that accept you to restrict your searches by topic to BSD. Linux. Apple,Microsoft or the U. S government?These special syntaxes are not mutually exclusive. On the contrary it's in the combination that thetrue magic of explore lies. Search for certain kinds of pages in special collections or different pageelements on different types of pages. If you get one thing out of this book get this: the possibilities are (almost) endless. This schedule canteach you techniques but if you just hit the books them by rote and then never apply them they won't doyou any good. Experiment. compete. Keep your search requirements in mind and try to change form theresources provided in this book to your needs—build a toolbox of examine techniques that worksspecifically for you.1.4 Google BasicsGenerally speaking there are two types of examine engines on the Internet. The first is called thesearchable affect index. This kind of search engine searches only the titles and descriptions ofsites and doesn't search individual pages. Yahoo! is a searchable affect index. Then there's thefull-text examine engine which uses computerized "spiders" to index millions sometimes billions,of pages. These pages can be searched by title or content allowing for much narrower searchesthan searchable affect index. explore is a full-text examine engine. Whenever you examine for more than one keyword at a measure a search engine has a default methodof how to command that keyword. ordain the engine search for both keywords or for either keyword?The answer is called a Boolean fail; search engines can default to Boolean AND (it'll search forboth keywords) or Boolean OR (it'll.
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