|
Search Engines-use
software programs called "spiders' or "robots", which comb the web
looking for documents and their web addresses. |
Meta-Search
engines don't actually crawl the web, they query several other engines
at once. They pass your inquiry to the other engines and return the
results. |
Directories-
use humans to categorize web pages by subject. These are best used for
general topics, commercial products, organizations, and companies. |
|
Use a search engine when you have a specific
topic or keyword. To use search engines effectively, it is essential
to use techniques that narrow the results and push the most relevant
pages to the top of the results list.
*Google*
(rated as the best search engine overall)
AltaVista
Northern Light
Fast (All The Web) |
Because the major engines often produce very
different results, meta-search engines provide a quick way to
determine which engines are retrieving the best matches for your
needs.
DogPile
MetaCrawler
HotBot |
Use a directory when you want general information
or when you are not sure where to begin.
Yahoo
WebCrawler
MSN.com
About.com
Lycos
AskJeeves
Excite |
