research on the internet :: search engines

Special Search Engines (Portals) on Internet

These search engines are specially designed to search special interests or a specific subject areas.
For example:

The Digital Librarian

+ http://www.digital-librarian.com/

This portal serves as a mini library and websites included are indexed in different subject categories, which makes retrieving easier.

The MagPortal

+ http://www.magportal.com

This portal indexes some free magazines and makes them accessible by indexing them in different categories.

Scout Project Research

+ http://scout.wisc.edu/About/index.php

According to the Scout project homepage, "Since 1994, the Scout Project has focused on developing better tools and services for finding, filtering, and presenting online information and metadata." People use this service to find quality websites in their subject areas.

SearchPDF

+ http://searchpdf.adobe.com/

This search engine is specialized in searching PDF files. This can become handy in searching extension publications since many of them are required to publish in PDF format.

GrayLit

+ http://www.osti.gov/graylit/

This engine helps you find gray literature published by U.S. Federal Agency, and is conventient that you do not need to know which agency is publishing the document you are looking for. The engine will assist you.