Google

Google has been the best search engine for quite some time, because

  • relevance is based on links from "important" sites
  • it has a cached archive
  • indexes file formats like .pdf & .doc
  • and a huge index (3 billion!)

A googol is 10^100 (a gigantic number) but they prefer to spell it "Google" (instead of gogle or googel).


 Quick Google 

 



 Advanced Google 

Power Searchers: Some combinations don't work, such only from a certain domain x occuring in the title.
Find results
with all of the words
with any of the words
with the exact phrase
without the words
Page Updated
Occurrences
Language
File Format return results of the file format
Domains return results from the site or domain
e.g. google.com, .org 
SafeSearch No filtering   Filter using SafeSearch


Page-Specific Search
Similar Find pages similar to the page
e.g. www.google.com/help.html
Links Find pages that link to the page

 How Google works 

Default search:

All keywords as if connected by AND. If all the words occur as a phrase, that page will rank higher.

Search options:

Understands Boolean + - and OR. Cannot be nested using ()

Use the * (Asterisk) as a Wildcard in a Phrase Search, such as:
"Lord * * Flies"
"George * Bush"
(cannot be used for part of a word, such as "George Bu*")

To search within a site, use site: ie admission site:www.stanford.edu

To find out who links to a site, use link:www.sitename.com

Title search allintitle:searchenginez , with the only variation allowed is the minus symbol, i.e. allintitle:searchenginez -redesigned

URL search is the same, with minus symbols allowed: allinurl:yahoo -shopping

File Type - to search for specific file types, use filetype:pdf or filetype:txt etc after your keyword(s).

Results:

Google ignores capitalization. Any page larger than 101k will be listed as 101k (Google only indexes the first 100k of any page).

Google indexes Acrobat (pdf), Microsoft Word (doc), Rich Text (rtf), Text (txt), Excel (xls), Postscript (ps) and PowerPoint (ppt) files.

Fresh: 3 million sites that Google deems to be important are indexed on a daily basis. In the results, the word Fresh! used to appear, but now just the date when it was last indexed:

searchenginewatch.com/ - 24k - Fresh! 12 Dec 2001

Cached results: Google stores a copy of each page, as it was when it was last indexed. This is extremely useful for when a site is down. For web sites with fast-changing content, such as news sites, the current contents might be irrelevant. The page is rated on when it was cached.

Extras: Google will respond with USA phone directory listings when supplied with:

  • first name (or first initial), last name, area code
  • first name (or first initial), last name, zip code
  • first name (or first initial), last name, city (state is optional)
  • first name (or first initial), last name, state,
  • phone number, including area code
  • last name, city, state
  • last name, zip

Google also responds to addresses with links to maps. More special features...

 Useful Links