Ultimate Guide to Google by theelixer

VIEWS: 51 PAGES: 13

									Spring 2006
Shields Library
UC Davis




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                                           Presenters:
                                   Sheila Cunningham
                                      Melissa Browne
What to Expect Today

 Some Google History & Background
 Beyond Keywords: Using Syntax
 Google Scholar
 FUN with Google!
Google Begins

 A research project:



 Larry Page and Sergey Brin, graduate
 students at Stanford University, began a search
 engine project in January 1996

 Nicknamed it BackRub because their system
 checked backlinks to estimate a site’s
 importance
The rest is history
 1997                          2003-2005
   google.com registered as      Gmail
   a domain name                 GooglePrint (BookSearch)
                                 GoogleScholar
 1998                            GoogleMaps
   Google, Inc. incorporated     GoogleVideo
   $1 million raised
   10,000 queries run          Today
                                 Over 4,000 employees
 2001                            worldwide
   U.S. Patent 6,285,999 for     Over 8 billion pages
   PageRank® granted             indexed
                                 Google Earth
                                 Google Calendar
 2002
                                 Google China? 谷歌
   ImageSearch, Froogle,
   and Google News
   launched
What is Google
 goo-gol \'gü-"gol\ noun.

   The number represented by the numeral
   1 followed by a hundred zeros

   Reflects the company's mission:
   “to organize the world's information and
   make it universally accessible and
   useful”
Google Is

 A Full Text Search Engine
   Keyword search the title and content of
   web pages for narrower results
   Can apply special syntax elements to
   keyword searches to unlock the true
   magic of Google


 A seemingly endless resource
 for discovery
Google Is Not
 A collection of everything online
   Internet is too large and growing fast             11
   billion+ pages on the surface web & it does not search
   the deep web
   Google does not index all content found
   on the Internet (music, video, & other non text
   based formats)


 Not a static system
   Always in flux
   Always evolving
How Google Works

              A. Your web server sends the
                 query to Google’s index
                 servers - they tell which
                 pages contain the words
                 that match the query.
              B. Then the query travels to
                 the doc servers - they
                 retrieve the stored
                 documents. Snippets are
                 generated to describe each
                 search result.
              C. The search results are
                 returned to the user in a
                 fraction of a second.
1. Crawling & Indexing the Web

 Googlebot crawls to web servers
 around the world to fetch
 documents
   Asks a web server to return a document
   Scans that document for hyperlinks,
   which gives it new documents to scan
   Assigns each retrieved page a number so
   it can refer to it again
2. Ranking Results
 The BIG question: How does Google
 decide which results go to the top of
 the list?

 Best know factor: PageRank™
   Assigns importance value (rank) to each page
   on the web
   Importance is determined by checking
   backlinks
   The higher the value of the backlink pages –
   the higher the importance of the page
Beyond Keywords:
Google’s Special Syntax

 Default Searching
 Standard Search Operators
 Keyword Search Operators
 URL Operators
 Information Operators
 More Handy Google Tools
Google Scholar

 What is Google Scholar?
 Searching Tips
   Basic Searching
     Anatomy of a Record
   Advanced Searching
References
 Google Hacks,2nd Edition
 Tara Calishain & Rael Dornfest
 2004

 Google: Top 100 Simplified® Tips & Tricks,
 Joe Kraynak
 2005

								
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