Reflection

Day 4

Today, i was taught about how to use keywords and booleans to search more accurately on the internet facilities. There were many different types of facilities in the world wide web like search engines (googles and yahoo), meta search engines(metacrawler), subject directories(google directory and yahoo directory) and databases. I also learnt that search engines are most commonly used in the internet and it works by using spiders or crawlers to look to the information that we need. Google and Yahoo search engines use their own servers' databases in the internet to look for information while meta search engines like MetaCrawler uses other search engines' servers' databases in the internet inclusive of Google and Yahoo to look for information, as for subject directories like google directory, it search the information through different categories.

When i compare the 3 internet facilities by entering the same search phrase and i found that search engines(google) returned the most hits while meta search engines(metacrawler) and subject directories(google directory) returned the least hits.

Links i found today:

Using Google search engine:
http://www.csialliance.org/home/

Using MetaCrawler meta search engine:
http://www.usdoj.gov/criminal/cybercrime/cyberstalking.htm

Using Google Directory:
http://www.usdoj.gov/criminal/cybercrime/cyberstalking.htm
(This is the same link as the above that is the most relevant to my topic as the rest of the results that were returned not relevant.)