research on the internet :: search engines
Special Search Engines (Portals) on Internet
search engines are specially designed to search special interests or a
specific subject areas.
The Digital Librarian
portal serves as a mini library and websites included are indexed in different
subject categories, which makes retrieving easier.
portal indexes some free magazines and makes them accessible by indexing
them in different categories.
Scout Project Research
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.
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.
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.