Search engines search electronically whereas most search directories use human editors to exclude irrelevant sites and include beneficial ones. Wikis invite contributers to write and edit articles mostly without authoriship. Understanding the pluses and minuses of each of these search tools will help you to determine when they are appropriate to use for particular high school research assignments.
Explore information in the Search Engines, Search Directories, and Wiki boxes and read the following tips.
Tips For Using Search Engines:
Tips For Using Search Directories:
One More Tip : When searching type
Search engines use complex computer programs to index websites, and these enormous indexes can then be searched using keywords. Search engines rank pages depending on relevancy (how many times a keyword appears on a webpage), proximity (where a keyword appears on the page) and popularity ranking (how often other sites link to the page).
It’s important to remember that search engines search electronically whereas most search directories use human editors to exclude irrelevant sites and include beneficial ones. Search engines are businesses that rely on ad revenue. Search engines in order of popularity are Google, Yahoo, Ask.com and Bing.
Using Wikipedia : Gives guidelines and discusses limitations.(Carleton College)
Search directories use expert editors to select and organize websites. Some directories are more tightly organized than others so it’s a good idea to read about how a particular directory is organized before you use it.
Here is an example :
Internet Public Library/Librarians’ Index (ipl2) Good spot to research any discipline. Search this directory of thousands of handpicked, screened and annotated web sites.
Use SweetSearch to locate evaluated websites.