What are Search Engines?
Technical terms associated with SE
Basic Web Search Engine
Types of Search Engines
Working of Search Engines
Crawler based Search Engines
Keyword Search Operators
Various search Engines
10 Do’s and Don’ts while Searching
A search engine is a sophisticated piece of software,
accessed through a page on a website that allows you to
search the web by entering search queries into a search
The search engine allows one to ask for content meeting
specific criteria and retrieving a list of references that
match those criteria.
Search engines use regularly updated indexes to operate
quickly and efficiently.
– Follow links to find information
– Record what words appear where
– What information is a good match to a user query?
– Find a good format for the information
– Handle queries, find pages, display results
Unlike search engines, which use special software to
locate and index sites, directories are compiled and
maintained by humans.
Directories often consist of a categorised list of links to
other sites to which you can add your own site.
Crawler-based search engines use sophisticated pieces of
software called spiders or robots to search and index web
These spiders are constantly at work, crawling around
the web, locating pages, and taking snapshots of those
pages to be cached or stored on the search engine’s
They are so sophisticated that they can follow links from
one page to another and from one site to another
Google is a prominent example of a crawler-based search engine.
Yahoo features both directories and crawler-based search engines .
Crawlers collecting data
Ability to specify how close within a record multiple terms should
be to each other
Requires terms to be in the exact order specified within the phrase
markings. The default standard for identifying phrases is to use double
quotes (" ") to surround the phrase.
Use apt keywords.
Use ‘+’ sign while searching for multiple
Use quotes to search for exact phrases on the net.
Use specific portals for better results.
Don’t rely much on sponsored links.
Avoid using form words.
Check for authenticity of source.
Don’t stop at the first page of results .
Don’t use just one search engine.
Why can’t we just use
a normal search
Focus your learners
Protect younger learners against
possible “bad sites”
Act as a knowledge filter
Make good sites more accessible
Eliminate possible millions of irrelevant results
Guide learners towards educator-evaluated web
Open your browser
in (or click):
Sign into Google using your
username and password
or Register for an account
If you already have a Gmail
Account you can sign into
any Google application with
your username and password
Type in the sites
that you want to
include (1 per line)
You will be able to edit this list and add more sites later.
You will now be able to share the link to your search engine or you
can even embed it on your school/class website or blog
Free Properties Search Engines.
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Voice Recognition & Emotion Understanding.
Better Resources to Search Through.
All types of properties Searching